31706968 has 16 divisors (see below), whose sum is σ = 59510880. Its totient is φ = 15837408.

The previous prime is 31706951. The next prime is 31706977. The reversal of 31706968 is 86960713.

It is a self number, because there is not a number n which added to its sum of digits gives 31706968.

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, 12721 + ... + 15007.

It is an arithmetic number, because the mean of its divisors is an integer number (3719430).

Almost surely, 2^31706968 is an apocalyptic number.

It is an amenable number.

31706968 is a deficient number, since it is larger than the sum of its proper divisors (27803912).

31706968 is a wasteful number, since it uses less digits than its factorization.

31706968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026 (or 4022 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 31706968 is about 5630.8940675527. The cubic root of 31706968 is about 316.5081553253.

The spelling of 31706968 in words is "thirty-one million, seven hundred six thousand, nine hundred sixty-eight".