13597856 has 24 divisors (see below), whose sum is σ = 27142164. Its totient is φ = 6704640.

The previous prime is 13597823. The next prime is 13597861. The reversal of 13597856 is 65879531.

It can be written as a sum of positive squares in 2 ways, for example, as 12816400 + 781456 = 3580^2 + 884^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575 + ... + 5246.

Almost surely, 2^13597856 is an apocalyptic number.

13597856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13597856 is a deficient number, since it is larger than the sum of its proper divisors (13544308).

13597856 is an equidigital number, since it uses as much as digits as its factorization.

13597856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5904 (or 5896 counting only the distinct ones).

The product of its digits is 226800, while the sum is 44.

The square root of 13597856 is about 3687.5270846463. The cubic root of 13597856 is about 238.6840944519.

The spelling of 13597856 in words is "thirteen million, five hundred ninety-seven thousand, eight hundred fifty-six".