Names of 77
| Nominal | 77 |
| Cardinal | seventy-seven |
| Ordinal | 77th |
| This number as US currency | seventy-seven dollars |
| Is 77 an odd number? | 77 is an odd number |
| Is 77 an even number? | 77 is NOT an even number |
| Is 77 a palindrome? | 77 is a palindrome number |
| Is 77 a triangle number? | 77 is NOT a triangle number |
77 in other Bases
| Base 2 (Binary) | 10011012 |
| Base 3 (Ternary) | 22123 |
| Base 4 (Quaternary) | 10314 |
| Base 5 (Quinary) | 3025 |
| Base 6 (Senary) | 2056 |
| Base 8 (Octal) | 1158 |
| Base 12 (Duodecimal) | 6512 |
| Base 16 (Hexadecimal) | 4D16 |
| Base 20 (Vigesimal) | 3H20 |
Primes and Factors tests for 77
| Is 77 a Prime Number? | 77 is NOT a prime |
| Is 77 a perfect number? | 77 is NOT a perfect number |
| Is 77 a Mersenne Prime? | 77 is NOT a Mersenne prime |
| Is 77 a Fermat Prime? | 77 is NOT a Fermat prime |
| Is 77 a Fibonacci Prime? | 77 is NOT a Fibonacci prime |
| Is 77 a Partition Prime? | 77 is NOT a Partition prime |
| Is 77 a Pell Prime? | 77 is NOT a Pell prime |
| Prime Factors | Prime factors of 77 |
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77 in other Numerals
| 77 in Roman Numeral | LXXVII |
| 77 in Chinese Numeral | 柒拾柒 |
| 77 in Egyptian Numeral | 𓎌𓐀 |
| 77 in Babylonian Numeral |   |
Roots and stuff for 77
| Is 77 a square number? | 77 is NOT a square number |
| Is 77 a cube number? | 77 is NOT a cube number |
| Square root of the number 77 | 8.7749643873921 |
| Cube root of the number 77 | 4.254320865115 |
Recreational math for 77
| Number 77 reversed | 77 |
| Sum of the digits | 14 |
| No of digits | 2 |