89591697 has 16 divisors (see below), whose sum is σ = 142938880. Its totient is φ = 55133136.

The previous prime is 89591687. The next prime is 89591731. The reversal of 89591697 is 79619598.

It is not a de Polignac number, because 89591697 - 2⁶ = 89591633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89591687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127273 + ... + 127974.

It is an arithmetic number, because the mean of its divisors is an integer number (8933680).

Almost surely, 2^89591697 is an apocalyptic number.

It is an amenable number.

89591697 is a deficient number, since it is larger than the sum of its proper divisors (53347183).

89591697 is a wasteful number, since it uses less digits than its factorization.

89591697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255269 (or 255263 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 54.

The square root of 89591697 is about 9465.2890605623. The cubic root of 89591697 is about 447.4617542712.

The spelling of 89591697 in words is "eighty-nine million, five hundred ninety-one thousand, six hundred ninety-seven".