31696506 has 12 divisors (see below), whose sum is σ = 68675802. Its totient is φ = 10565496.

The previous prime is 31696487. The next prime is 31696523. The reversal of 31696506 is 60569613.

It can be written as a sum of positive squares in only one way, i.e., 18844281 + 12852225 = 4341^2 + 3585^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 880441 + ... + 880476.

Almost surely, 2^31696506 is an apocalyptic number.

31696506 is an abundant number, since it is smaller than the sum of its proper divisors (36979296).

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

31696506 is a wasteful number, since it uses less digits than its factorization.

31696506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760925 (or 1760922 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 31696506 is about 5629.9650087723. The cubic root of 31696506 is about 316.4733399225.

The spelling of 31696506 in words is "thirty-one million, six hundred ninety-six thousand, five hundred six".