31312696 has 8 divisors (see below), whose sum is σ = 58711320. Its totient is φ = 15656344.

The previous prime is 31312679. The next prime is 31312711. The reversal of 31312696 is 69621313.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1957036 + ... + 1957051.

It is an arithmetic number, because the mean of its divisors is an integer number (7338915).

Almost surely, 2^31312696 is an apocalyptic number.

It is an amenable number.

31312696 is a deficient number, since it is larger than the sum of its proper divisors (27398624).

31312696 is a wasteful number, since it uses less digits than its factorization.

31312696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3914093 (or 3914089 counting only the distinct ones).

The product of its digits is 5832, while the sum is 31.

The square root of 31312696 is about 5595.7748346409. The cubic root of 31312696 is about 315.1907671203.

The spelling of 31312696 in words is "thirty-one million, three hundred twelve thousand, six hundred ninety-six".