Names of 89
| Nominal | 89 |
| Cardinal | eighty-nine |
| Ordinal | 89th |
| This number as US currency | eighty-nine dollars |
| Is 89 an odd number? | 89 is an odd number |
| Is 89 an even number? | 89 is NOT an even number |
| Is 89 a palindrome? | 89 is NOT a palindrome number |
| Is 89 a triangle number? | 89 is NOT a triangle number |
89 in other Bases
| Base 2 (Binary) | 10110012 |
| Base 3 (Ternary) | 100223 |
| Base 4 (Quaternary) | 11214 |
| Base 5 (Quinary) | 3245 |
| Base 6 (Senary) | 2256 |
| Base 8 (Octal) | 1318 |
| Base 12 (Duodecimal) | 7512 |
| Base 16 (Hexadecimal) | 5916 |
| Base 20 (Vigesimal) | 4920 |
Primes and Factors tests for 89
| Is 89 a Prime Number? | 89 is a prime |
| Is 89 a perfect number? | 89 is NOT a perfect number |
| Is 89 a Mersenne Prime? | 89 is NOT a Mersenne prime |
| Is 89 a Fermat Prime? | 89 is NOT a Fermat prime |
| Is 89 a Fibonacci Prime? | 89 is a Fibonacci prime |
| Is 89 a Partition Prime? | 89 is NOT a Partition prime |
| Is 89 a Pell Prime? | 89 is NOT a Pell prime |
| Prime Factors | Prime factors of 89 |
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89 in other Numerals
| 89 in Roman Numeral | LXXXIX |
| 89 in Chinese Numeral | 捌拾玖 |
| 89 in Egyptian Numeral | 𓎍𓐂 |
| 89 in Babylonian Numeral |   |
Roots and stuff for 89
| Is 89 a square number? | 89 is NOT a square number |
| Is 89 a cube number? | 89 is NOT a cube number |
| Square root of the number 89 | 9.4339811320566 |
| Cube root of the number 89 | 4.4647450955845 |
Recreational math for 89
| Number 89 reversed | 98 |
| Sum of the digits | 17 |
| No of digits | 2 |