31894968 has 32 divisors (see below), whose sum is σ = 91128960. Its totient is φ = 9112800.

The previous prime is 31894943. The next prime is 31894981. The reversal of 31894968 is 86949813.

It is a Smith number, since the sum of its digits (48) 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 7 ways as a sum of consecutive naturals, for example, 94758 + ... + 95093.

It is an arithmetic number, because the mean of its divisors is an integer number (2847780).

Almost surely, 2^31894968 is an apocalyptic number.

It is an amenable number.

31894968 is an abundant number, since it is smaller than the sum of its proper divisors (59233992).

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

31894968 is a wasteful number, since it uses less digits than its factorization.

31894968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189867 (or 189863 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 31894968 is about 5647.5630142567. The cubic root of 31894968 is about 317.1324798627.

The spelling of 31894968 in words is "thirty-one million, eight hundred ninety-four thousand, nine hundred sixty-eight".