31968708 has 12 divisors (see below), whose sum is σ = 74593680. Its totient is φ = 10656232.

The previous prime is 31968691. The next prime is 31968709. The reversal of 31968708 is 80786913.

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

It is a self number, because there is not a number n which added to its sum of digits gives 31968708.

It is not an unprimeable number, because it can be changed into a prime (31968709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1332018 + ... + 1332041.

It is an arithmetic number, because the mean of its divisors is an integer number (6216140).

Almost surely, 2^31968708 is an apocalyptic number.

It is an amenable number.

31968708 is an abundant number, since it is smaller than the sum of its proper divisors (42624972).

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

31968708 is a wasteful number, since it uses less digits than its factorization.

31968708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664066 (or 2664064 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 31968708 is about 5654.0877248235. The cubic root of 31968708 is about 317.3766913232.

The spelling of 31968708 in words is "thirty-one million, nine hundred sixty-eight thousand, seven hundred eight".