13636668 has 12 divisors (see below), whose sum is σ = 31818920. Its totient is φ = 4545552.

The previous prime is 13636643. The next prime is 13636681. The reversal of 13636668 is 86663631.

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

It is a congruent number.

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, 568183 + ... + 568206.

Almost surely, 2^13636668 is an apocalyptic number.

It is an amenable number.

13636668 is an abundant number, since it is smaller than the sum of its proper divisors (18182252).

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

13636668 is a wasteful number, since it uses less digits than its factorization.

13636668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136396 (or 1136394 counting only the distinct ones).

The product of its digits is 93312, while the sum is 39.

The square root of 13636668 is about 3692.7859401812. The cubic root of 13636668 is about 238.9109686300.

The spelling of 13636668 in words is "thirteen million, six hundred thirty-six thousand, six hundred sixty-eight".