31707963 has 32 divisors (see below), whose sum is σ = 54149120. Its totient is φ = 17962560.

The previous prime is 31707953. The next prime is 31707967. The reversal of 31707963 is 36970713.

It is not a de Polignac number, because 31707963 - 2¹⁷ = 31576891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31707967) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23343 + ... + 24663.

It is an arithmetic number, because the mean of its divisors is an integer number (1692160).

Almost surely, 2^31707963 is an apocalyptic number.

31707963 is a deficient number, since it is larger than the sum of its proper divisors (22441157).

31707963 is a wasteful number, since it uses less digits than its factorization.

31707963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 23814, while the sum is 36.

The square root of 31707963 is about 5630.9824187259. The cubic root of 31707963 is about 316.5114660836.

The spelling of 31707963 in words is "thirty-one million, seven hundred seven thousand, nine hundred sixty-three".