Names of 997
| Nominal | 997 |
| Cardinal | nine hundred ninety-seven |
| Ordinal | 997th |
| This number as US currency | nine hundred ninety-seven dollars |
| Is 997 an odd number? | 997 is an odd number |
| Is 997 an even number? | 997 is NOT an even number |
| Is 997 a palindrome? | 997 is NOT a palindrome number |
| Is 997 a triangle number? | 997 is NOT a triangle number |
997 in other Bases
| Base 2 (Binary) | 11111001012 |
| Base 3 (Ternary) | 11002213 |
| Base 4 (Quaternary) | 332114 |
| Base 5 (Quinary) | 124425 |
| Base 6 (Senary) | 43416 |
| Base 8 (Octal) | 17458 |
| Base 12 (Duodecimal) | 6B112 |
| Base 16 (Hexadecimal) | 3E516 |
| Base 20 (Vigesimal) | 29H20 |
Primes and Factors tests for 997
| Is 997 a Prime Number? | 997 is a prime |
| Is 997 a perfect number? | 997 is NOT a perfect number |
| Is 997 a Mersenne Prime? | 997 is NOT a Mersenne prime |
| Is 997 a Fermat Prime? | 997 is NOT a Fermat prime |
| Is 997 a Fibonacci Prime? | 997 is NOT a Fibonacci prime |
| Is 997 a Partition Prime? | 997 is NOT a Partition prime |
| Is 997 a Pell Prime? | 997 is NOT a Pell prime |
| Prime Factors | Prime factors of 997 |
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997 in other Numerals
| 997 in Roman Numeral | CMXCVII |
| 997 in Chinese Numeral | 玖佰玖拾柒 |
| 997 in Egyptian Numeral | 𓍪𓎎𓐀 |
| 997 in Babylonian Numeral |   |
Roots and stuff for 997
| Is 997 a square number? | 997 is NOT a square number |
| Is 997 a cube number? | 997 is NOT a cube number |
| Square root of the number 997 | 31.575306807694 |
| Cube root of the number 997 | 9.9899899832999 |
Recreational math for 997
| Number 997 reversed | 799 |
| Sum of the digits | 25 |
| No of digits | 3 |