91682631 has 8 divisors (see below), whose sum is σ = 135826160. Its totient is φ = 61121736.

The previous prime is 91682627. The next prime is 91682641. The reversal of 91682631 is 13628619.

91682631 is a `hidden beast` number, since 9 + 16 + 8 + 2 + 631 = 666.

It is not a de Polignac number, because 91682631 - 2² = 91682627 is a prime.

It is a super-2 number, since 2×91682631² = 16811409654164322, 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 (91682621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1697800 + ... + 1697853.

It is an arithmetic number, because the mean of its divisors is an integer number (16978270).

Almost surely, 2^91682631 is an apocalyptic number.

91682631 is a deficient number, since it is larger than the sum of its proper divisors (44143529).

91682631 is a wasteful number, since it uses less digits than its factorization.

91682631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395662 (or 3395656 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 91682631 is about 9575.1047513852. The cubic root of 91682631 is about 450.9160450933.

The spelling of 91682631 in words is "ninety-one million, six hundred eighty-two thousand, six hundred thirty-one".