89908499 has 2 divisors, whose sum is σ = 89908500. Its totient is φ = 89908498.

The previous prime is 89908493. The next prime is 89908501. The reversal of 89908499 is 99480998.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89908499 is a prime.

It is a Sophie Germain prime.

Together with 89908501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89908493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44954249 + 44954250.

It is an arithmetic number, because the mean of its divisors is an integer number (44954250).

Almost surely, 2^89908499 is an apocalyptic number.

89908499 is a deficient number, since it is larger than the sum of its proper divisors (1).

89908499 is an equidigital number, since it uses as much as digits as its factorization.

89908499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 56.

The square root of 89908499 is about 9482.0092280065. The cubic root of 89908499 is about 447.9885516712.

The spelling of 89908499 in words is "eighty-nine million, nine hundred eight thousand, four hundred ninety-nine".