13686316 has 12 divisors (see below), whose sum is σ = 27372688. Its totient is φ = 5865552.

The previous prime is 13686307. The next prime is 13686319. The reversal of 13686316 is 61368631.

It is a happy number.

13686316 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (13686319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244371 + ... + 244426.

Almost surely, 2^13686316 is an apocalyptic number.

It is an amenable number.

13686316 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13686316 is a wasteful number, since it uses less digits than its factorization.

13686316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488808 (or 488806 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 13686316 is about 3699.5021286654. The cubic root of 13686316 is about 239.2005575987.

The spelling of 13686316 in words is "thirteen million, six hundred eighty-six thousand, three hundred sixteen".