31982976 has 48 divisors (see below), whose sum is σ = 92037660. Its totient is φ = 10660608.

The previous prime is 31982957. The next prime is 31982987. The reversal of 31982976 is 67928913.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12730 + ... + 15033.

Almost surely, 2^31982976 is an apocalyptic number.

31982976 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31982976 is an abundant number, since it is smaller than the sum of its proper divisors (60054684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31982976 is a wasteful number, since it uses less digits than its factorization.

31982976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27783 (or 27768 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 31982976 is about 5655.3493260806. The cubic root of 31982976 is about 317.4239005829.

The spelling of 31982976 in words is "thirty-one million, nine hundred eighty-two thousand, nine hundred seventy-six".