31960465 has 16 divisors (see below), whose sum is σ = 39890880. Its totient is φ = 24552640.

The previous prime is 31960457. The next prime is 31960469. The reversal of 31960465 is 56406913.

It is not a de Polignac number, because 31960465 - 2³ = 31960457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31960465.

It is not an unprimeable number, because it can be changed into a prime (31960469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32430 + ... + 33400.

It is an arithmetic number, because the mean of its divisors is an integer number (2493180).

Almost surely, 2^31960465 is an apocalyptic number.

It is an amenable number.

31960465 is a deficient number, since it is larger than the sum of its proper divisors (7930415).

31960465 is a wasteful number, since it uses less digits than its factorization.

31960465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 31960465 is about 5653.3587361851. The cubic root of 31960465 is about 317.3494108864.

The spelling of 31960465 in words is "thirty-one million, nine hundred sixty thousand, four hundred sixty-five".