31979084 has 12 divisors (see below), whose sum is σ = 56171808. Its totient is φ = 15930000.

The previous prime is 31979081. The next prime is 31979089. The reversal of 31979084 is 48097913.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31979081) 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, 13667 + ... + 15834.

It is an arithmetic number, because the mean of its divisors is an integer number (4680984).

Almost surely, 2^31979084 is an apocalyptic number.

It is an amenable number.

31979084 is a deficient number, since it is larger than the sum of its proper divisors (24192724).

31979084 is a wasteful number, since it uses less digits than its factorization.

31979084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29776 (or 29774 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 31979084 is about 5655.0052166201. The cubic root of 31979084 is about 317.4110243167.

The spelling of 31979084 in words is "thirty-one million, nine hundred seventy-nine thousand, eighty-four".