13657472 has 16 divisors (see below), whose sum is σ = 27208500. Its totient is φ = 6828672.

The previous prime is 13657471. The next prime is 13657487. The reversal of 13657472 is 27475631.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13657471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53222 + ... + 53477.

Almost surely, 2^13657472 is an apocalyptic number.

It is an amenable number.

13657472 is a deficient number, since it is larger than the sum of its proper divisors (13551028).

13657472 is an equidigital number, since it uses as much as digits as its factorization.

13657472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106713 (or 106701 counting only the distinct ones).

The product of its digits is 35280, while the sum is 35.

The square root of 13657472 is about 3695.6017101414. The cubic root of 13657472 is about 239.0324005022.

The spelling of 13657472 in words is "thirteen million, six hundred fifty-seven thousand, four hundred seventy-two".