31700713 has 4 divisors (see below), whose sum is σ = 34582608. Its totient is φ = 28818820.

The previous prime is 31700707. The next prime is 31700723.

31700713 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31700713 - 2¹⁷ = 31569641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31700723) 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, 1440931 + ... + 1440952.

It is an arithmetic number, because the mean of its divisors is an integer number (8645652).

Almost surely, 2^31700713 is an apocalyptic number.

It is an amenable number.

31700713 is a deficient number, since it is larger than the sum of its proper divisors (2881895).

31700713 is a wasteful number, since it uses less digits than its factorization.

31700713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881894.

The product of its (nonzero) digits is 441, while the sum is 22.

The square root of 31700713 is about 5630.3386221434. The cubic root of 31700713 is about 316.4873408815.

The spelling of 31700713 in words is "thirty-one million, seven hundred thousand, seven hundred thirteen".