13631684 has 12 divisors (see below), whose sum is σ = 26024208. Its totient is φ = 6196200.

The previous prime is 13631677. The next prime is 13631689. The reversal of 13631684 is 48613631.

It is a self number, because there is not a number n which added to its sum of digits gives 13631684.

It is not an unprimeable number, because it can be changed into a prime (13631689) 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, 154862 + ... + 154949.

It is an arithmetic number, because the mean of its divisors is an integer number (2168684).

Almost surely, 2^13631684 is an apocalyptic number.

It is an amenable number.

13631684 is a deficient number, since it is larger than the sum of its proper divisors (12392524).

13631684 is a wasteful number, since it uses less digits than its factorization.

13631684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309826 (or 309824 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 13631684 is about 3692.1110492508. Note that the first 3 decimals coincide. The cubic root of 13631684 is about 238.8818589442.

The spelling of 13631684 in words is "thirteen million, six hundred thirty-one thousand, six hundred eighty-four".