89697687 has 16 divisors (see below), whose sum is σ = 121085952. Its totient is φ = 59058720.

The previous prime is 89697679. The next prime is 89697691. The reversal of 89697687 is 78679698.

It is not a de Polignac number, because 89697687 - 2³ = 89697679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89697687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89697617) 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, 118113 + ... + 118869.

It is an arithmetic number, because the mean of its divisors is an integer number (7567872).

Almost surely, 2^89697687 is an apocalyptic number.

89697687 is a deficient number, since it is larger than the sum of its proper divisors (31388265).

89697687 is a wasteful number, since it uses less digits than its factorization.

89697687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198.

The product of its digits is 9144576, while the sum is 60.

The square root of 89697687 is about 9470.8862837646. The cubic root of 89697687 is about 447.6381388501.

The spelling of 89697687 in words is "eighty-nine million, six hundred ninety-seven thousand, six hundred eighty-seven".