13998756 has 12 divisors (see below), whose sum is σ = 32663792. Its totient is φ = 4666248.

The previous prime is 13998737. The next prime is 13998773. The reversal of 13998756 is 65789931.

13998756 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583270 + ... + 583293.

Almost surely, 2^13998756 is an apocalyptic number.

It is an amenable number.

13998756 is an abundant number, since it is smaller than the sum of its proper divisors (18665036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13998756 is a wasteful number, since it uses less digits than its factorization.

13998756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166570 (or 1166568 counting only the distinct ones).

The product of its digits is 408240, while the sum is 48.

The square root of 13998756 is about 3741.4911465885. The cubic root of 13998756 is about 241.0070875942.

The spelling of 13998756 in words is "thirteen million, nine hundred ninety-eight thousand, seven hundred fifty-six".