31964465 has 16 divisors (see below), whose sum is σ = 42190848. Its totient is φ = 23100096.

The previous prime is 31964453. The next prime is 31964473. The reversal of 31964465 is 56446913.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31964465 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2177 + ... + 8286.

It is an arithmetic number, because the mean of its divisors is an integer number (2636928).

Almost surely, 2^31964465 is an apocalyptic number.

It is an amenable number.

31964465 is a deficient number, since it is larger than the sum of its proper divisors (10226383).

31964465 is a wasteful number, since it uses less digits than its factorization.

31964465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10528.

The product of its digits is 77760, while the sum is 38.

The square root of 31964465 is about 5653.7124971120. The cubic root of 31964465 is about 317.3626495829.

The spelling of 31964465 in words is "thirty-one million, nine hundred sixty-four thousand, four hundred sixty-five".