Names of 19997
| Nominal | 19997 |
| Cardinal | nineteen thousand nine hundred ninety-seven |
| Ordinal | 19,997th |
| This number as US currency | nineteen thousand nine hundred ninety-seven dollars |
| Is 19997 an odd number? | 19997 is an odd number |
| Is 19997 an even number? | 19997 is NOT an even number |
| Is 19997 a palindrome? | 19997 is NOT a palindrome number |
| Is 19997 a triangle number? | 19997 is NOT a triangle number |
19997 in other Bases
| Base 2 (Binary) | 1001110000111012 |
| Base 3 (Ternary) | 10001021223 |
| Base 4 (Quaternary) | 103201314 |
| Base 5 (Quinary) | 11144425 |
| Base 6 (Senary) | 2323256 |
| Base 8 (Octal) | 470358 |
| Base 12 (Duodecimal) | B6A512 |
| Base 16 (Hexadecimal) | 4E1D16 |
| Base 20 (Vigesimal) | 29JH20 |
Primes and Factors tests for 19997
| Is 19997 a Prime Number? | 19997 is a prime |
| Is 19997 a perfect number? | 19997 is NOT a perfect number |
| Is 19997 a Mersenne Prime? | 19997 is NOT a Mersenne prime |
| Is 19997 a Fermat Prime? | 19997 is NOT a Fermat prime |
| Is 19997 a Fibonacci Prime? | 19997 is NOT a Fibonacci prime |
| Is 19997 a Partition Prime? | 19997 is NOT a Partition prime |
| Is 19997 a Pell Prime? | 19997 is NOT a Pell prime |
| Prime Factors | Prime factors of 19997 |
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19997 in other Numerals
| 19997 in Roman Numeral | XMXCMXCVII |
| 19997 in Chinese Numeral | 壹萬玖仟玖佰玖拾柒 |
| 19997 in Egyptian Numeral | 𓂭𓇄𓍪𓎎𓐀 |
| 19997 in Babylonian Numeral |    |
Roots and stuff for 19997
| Is 19997 a square number? | 19997 is NOT a square number |
| Is 19997 a cube number? | 19997 is NOT a cube number |
| Square root of the number 19997 | 141.41074923781 |
| Cube root of the number 19997 | 27.142818889275 |
Recreational math for 19997
| Number 19997 reversed | 79991 |
| Sum of the digits | 35 |
| No of digits | 5 |