13739664 has 20 divisors (see below), whose sum is σ = 35494256. Its totient is φ = 4579872.

The previous prime is 13739659. The next prime is 13739681. The reversal of 13739664 is 46693731.

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, 143074 + ... + 143169.

Almost surely, 2^13739664 is an apocalyptic number.

It is an amenable number.

13739664 is an abundant number, since it is smaller than the sum of its proper divisors (21754592).

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

13739664 is a wasteful number, since it uses less digits than its factorization.

13739664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286254 (or 286248 counting only the distinct ones).

The product of its digits is 81648, while the sum is 39.

The square root of 13739664 is about 3706.7052755783. The cubic root of 13739664 is about 239.5109485743.

The spelling of 13739664 in words is "thirteen million, seven hundred thirty-nine thousand, six hundred sixty-four".