13978576 has 20 divisors (see below), whose sum is σ = 27428800. Its totient is φ = 6900192.

The previous prime is 13978571. The next prime is 13978619. The reversal of 13978576 is 67587931.

13978576 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13978571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4266 + ... + 6793.

It is an arithmetic number, because the mean of its divisors is an integer number (1371440).

Almost surely, 2^13978576 is an apocalyptic number.

13978576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13978576 is a deficient number, since it is larger than the sum of its proper divisors (13450224).

13978576 is a wasteful number, since it uses less digits than its factorization.

13978576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11146 (or 11140 counting only the distinct ones).

The product of its digits is 317520, while the sum is 46.

The square root of 13978576 is about 3738.7933882471. The cubic root of 13978576 is about 240.8912234437.

The spelling of 13978576 in words is "thirteen million, nine hundred seventy-eight thousand, five hundred seventy-six".