31593968 has 20 divisors (see below), whose sum is σ = 69958320. Its totient is φ = 13540224.

The previous prime is 31593959. The next prime is 31593983. The reversal of 31593968 is 86939513.

It is a Smith number, since the sum of its digits (44) 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 3 ways as a sum of consecutive naturals, for example, 140933 + ... + 141156.

It is an arithmetic number, because the mean of its divisors is an integer number (3497916).

Almost surely, 2^31593968 is an apocalyptic number.

It is an amenable number.

31593968 is an abundant number, since it is smaller than the sum of its proper divisors (38364352).

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

31593968 is a wasteful number, since it uses less digits than its factorization.

31593968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282104 (or 282098 counting only the distinct ones).

The product of its digits is 174960, while the sum is 44.

The square root of 31593968 is about 5620.8511810935. The cubic root of 31593968 is about 316.1317081688.

The spelling of 31593968 in words is "thirty-one million, five hundred ninety-three thousand, nine hundred sixty-eight".