31700868 has 12 divisors (see below), whose sum is σ = 73968720. Its totient is φ = 10566952.

The previous prime is 31700839. The next prime is 31700881. The reversal of 31700868 is 86800713.

It is a tau number, because it is divible by the number of its divisors (12).

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, 1320858 + ... + 1320881.

It is an arithmetic number, because the mean of its divisors is an integer number (6164060).

Almost surely, 2^31700868 is an apocalyptic number.

It is an amenable number.

31700868 is an abundant number, since it is smaller than the sum of its proper divisors (42267852).

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

31700868 is a wasteful number, since it uses less digits than its factorization.

31700868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641746 (or 2641744 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 31700868 is about 5630.3523868405. The cubic root of 31700868 is about 316.4878567001.

The spelling of 31700868 in words is "thirty-one million, seven hundred thousand, eight hundred sixty-eight".