13687386 has 8 divisors (see below), whose sum is σ = 27374784. Its totient is φ = 4562460.

The previous prime is 13687357. The next prime is 13687403. The reversal of 13687386 is 68378631.

13687386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

13687386 is an admirable 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, 1140610 + ... + 1140621.

It is an arithmetic number, because the mean of its divisors is an integer number (3421848).

Almost surely, 2^13687386 is an apocalyptic number.

13687386 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.

13687386 is a wasteful number, since it uses less digits than its factorization.

13687386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281236.

The product of its digits is 145152, while the sum is 42.

The square root of 13687386 is about 3699.6467398929. The cubic root of 13687386 is about 239.2067910250.

The spelling of 13687386 in words is "thirteen million, six hundred eighty-seven thousand, three hundred eighty-six".