31982974 has 8 divisors (see below), whose sum is σ = 48148488. Its totient is φ = 15933480.

The previous prime is 31982957. The next prime is 31982987. The reversal of 31982974 is 47928913.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 31982974.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28312 + ... + 29419.

It is an arithmetic number, because the mean of its divisors is an integer number (6018561).

Almost surely, 2^31982974 is an apocalyptic number.

31982974 is a deficient number, since it is larger than the sum of its proper divisors (16165514).

31982974 is a wasteful number, since it uses less digits than its factorization.

31982974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58010.

The product of its digits is 108864, while the sum is 43.

The square root of 31982974 is about 5655.3491492568. The cubic root of 31982974 is about 317.4238939664.

The spelling of 31982974 in words is "thirty-one million, nine hundred eighty-two thousand, nine hundred seventy-four".