90692631 has 18 divisors (see below), whose sum is σ = 132938000. Its totient is φ = 59580360.

The previous prime is 90692597. The next prime is 90692659. The reversal of 90692631 is 13629609.

It is not a de Polignac number, because 90692631 - 2¹⁰ = 90691607 is a prime.

It is a super-2 number, since 2×90692631² = 16450306635404322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90692431) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 44370 + ... + 46368.

Almost surely, 2^90692631 is an apocalyptic number.

90692631 is a deficient number, since it is larger than the sum of its proper divisors (42245369).

90692631 is a wasteful number, since it uses less digits than its factorization.

90692631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147 (or 2073 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 90692631 is about 9523.2678740021. The cubic root of 90692631 is about 449.2871528532.

The spelling of 90692631 in words is "ninety million, six hundred ninety-two thousand, six hundred thirty-one".