31233668 has 12 divisors (see below), whose sum is σ = 54707100. Its totient is φ = 15603072.

The previous prime is 31233659. The next prime is 31233679. The reversal of 31233668 is 86633213.

It can be written as a sum of positive squares in 2 ways, for example, as 14077504 + 17156164 = 3752^2 + 4142^2 .

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, 3008 + ... + 8456.

It is an arithmetic number, because the mean of its divisors is an integer number (4558925).

Almost surely, 2^31233668 is an apocalyptic number.

It is an amenable number.

31233668 is a deficient number, since it is larger than the sum of its proper divisors (23473432).

31233668 is a wasteful number, since it uses less digits than its factorization.

31233668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6886 (or 6884 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

The square root of 31233668 is about 5588.7089743518. The cubic root of 31233668 is about 314.9253808302.

The spelling of 31233668 in words is "thirty-one million, two hundred thirty-three thousand, six hundred sixty-eight".