89969631 has 16 divisors (see below), whose sum is σ = 124840320. Its totient is φ = 57587040.

The previous prime is 89969623. The next prime is 89969639. The reversal of 89969631 is 13696998.

It is an interprime number because it is at equal distance from previous prime (89969623) and next prime (89969639).

It is not a de Polignac number, because 89969631 - 2³ = 89969623 is a prime.

It is a super-2 number, since 2×89969631² = 16189069004552322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89969639) 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, 1701 + ... + 13521.

It is an arithmetic number, because the mean of its divisors is an integer number (7802520).

Almost surely, 2^89969631 is an apocalyptic number.

89969631 is a deficient number, since it is larger than the sum of its proper divisors (34870689).

89969631 is a wasteful number, since it uses less digits than its factorization.

89969631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11926.

The product of its digits is 629856, while the sum is 51.

The square root of 89969631 is about 9485.2322586218. The cubic root of 89969631 is about 448.0900631404.

The spelling of 89969631 in words is "eighty-nine million, nine hundred sixty-nine thousand, six hundred thirty-one".