31700668 has 12 divisors (see below), whose sum is σ = 56026152. Its totient is φ = 15693200.

The previous prime is 31700657. The next prime is 31700671. The reversal of 31700668 is 86600713.

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, 38830 + ... + 39637.

It is an arithmetic number, because the mean of its divisors is an integer number (4668846).

Almost surely, 2^31700668 is an apocalyptic number.

It is an amenable number.

31700668 is a deficient number, since it is larger than the sum of its proper divisors (24325484).

31700668 is a wasteful number, since it uses less digits than its factorization.

31700668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78572 (or 78570 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 31700668 is about 5630.3346259348. The cubic root of 31700668 is about 316.4871911274.

The spelling of 31700668 in words is "thirty-one million, seven hundred thousand, six hundred sixty-eight".