13634664 has 32 divisors (see below), whose sum is σ = 34668000. Its totient is φ = 4467392.

The previous prime is 13634639. The next prime is 13634681. The reversal of 13634664 is 46643631.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3399 + ... + 6230.

It is an arithmetic number, because the mean of its divisors is an integer number (1083375).

Almost surely, 2^13634664 is an apocalyptic number.

It is an amenable number.

13634664 is an abundant number, since it is smaller than the sum of its proper divisors (21033336).

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

13634664 is a wasteful number, since it uses less digits than its factorization.

13634664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9697 (or 9693 counting only the distinct ones).

The product of its digits is 31104, while the sum is 33.

The square root of 13634664 is about 3692.5145903571. The cubic root of 13634664 is about 238.8992648659.

The spelling of 13634664 in words is "thirteen million, six hundred thirty-four thousand, six hundred sixty-four".