31982668 has 12 divisors (see below), whose sum is σ = 56022120. Its totient is φ = 15976352.

The previous prime is 31982663. The next prime is 31982677. The reversal of 31982668 is 86628913.

It is not an unprimeable number, because it can be changed into a prime (31982663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2055 + ... + 8257.

It is an arithmetic number, because the mean of its divisors is an integer number (4668510).

Almost surely, 2^31982668 is an apocalyptic number.

It is an amenable number.

31982668 is a deficient number, since it is larger than the sum of its proper divisors (24039452).

31982668 is a wasteful number, since it uses less digits than its factorization.

31982668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7496 (or 7494 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 31982668 is about 5655.3220951596. The cubic root of 31982668 is about 317.4228816358.

The spelling of 31982668 in words is "thirty-one million, nine hundred eighty-two thousand, six hundred sixty-eight".