13397872 has 10 divisors (see below), whose sum is σ = 25958408. Its totient is φ = 6698928.

The previous prime is 13397863. The next prime is 13397893. The reversal of 13397872 is 27879331.

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 as a sum of consecutive naturals, namely, 418668 + ... + 418699.

Almost surely, 2^13397872 is an apocalyptic number.

It is an amenable number.

13397872 is a deficient number, since it is larger than the sum of its proper divisors (12560536).

13397872 is an equidigital number, since it uses as much as digits as its factorization.

13397872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837375 (or 837369 counting only the distinct ones).

The product of its digits is 63504, while the sum is 40.

The square root of 13397872 is about 3660.3103693539. The cubic root of 13397872 is about 237.5081999016.

The spelling of 13397872 in words is "thirteen million, three hundred ninety-seven thousand, eight hundred seventy-two".