31713456 has 40 divisors (see below), whose sum is σ = 82137600. Its totient is φ = 10543936.

The previous prime is 31713439. The next prime is 31713491. The reversal of 31713456 is 65431713.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28201 + ... + 29303.

It is an arithmetic number, because the mean of its divisors is an integer number (2053440).

Almost surely, 2^31713456 is an apocalyptic number.

It is an amenable number.

31713456 is an abundant number, since it is smaller than the sum of its proper divisors (50424144).

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

31713456 is a wasteful number, since it uses less digits than its factorization.

31713456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713 (or 1707 counting only the distinct ones).

The product of its digits is 7560, while the sum is 30.

The square root of 31713456 is about 5631.4701455304. The cubic root of 31713456 is about 316.5297422192.

The spelling of 31713456 in words is "thirty-one million, seven hundred thirteen thousand, four hundred fifty-six".