31000868 has 12 divisors (see below), whose sum is σ = 56001792. Its totient is φ = 15000360.

The previous prime is 31000859. The next prime is 31000873. The reversal of 31000868 is 86800013.

It is a super-2 number, since 2×31000868² = 1922107633506848, which contains 22 as substring.

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, 124880 + ... + 125127.

It is an arithmetic number, because the mean of its divisors is an integer number (4666816).

Almost surely, 2^31000868 is an apocalyptic number.

It is an amenable number.

31000868 is a deficient number, since it is larger than the sum of its proper divisors (25000924).

31000868 is a wasteful number, since it uses less digits than its factorization.

31000868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250042 (or 250040 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 31000868 is about 5567.8423109855. The cubic root of 31000868 is about 314.1409971671.

The spelling of 31000868 in words is "thirty-one million, eight hundred sixty-eight", and thus it is an aban number.