13297864 has 16 divisors (see below), whose sum is σ = 26017920. Its totient is φ = 6359760.

The previous prime is 13297861. The next prime is 13297871. The reversal of 13297864 is 46879231.

It is not an unprimeable number, because it can be changed into a prime (13297861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35952 + ... + 36319.

It is an arithmetic number, because the mean of its divisors is an integer number (1626120).

Almost surely, 2^13297864 is an apocalyptic number.

It is an amenable number.

13297864 is a deficient number, since it is larger than the sum of its proper divisors (12720056).

13297864 is a wasteful number, since it uses less digits than its factorization.

13297864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72300 (or 72296 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 13297864 is about 3646.6236438657. The cubic root of 13297864 is about 236.9157658481.

It can be divided in two parts, 13297 and 864, that added together give a square (14161 = 119²).

The spelling of 13297864 in words is "thirteen million, two hundred ninety-seven thousand, eight hundred sixty-four".