13888686 has 16 divisors (see below), whose sum is σ = 31745664. Its totient is φ = 3968184.

The previous prime is 13888669. The next prime is 13888723. The reversal of 13888686 is 68688831.

It is a happy number.

It is a congruent number.

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, 165300 + ... + 165383.

It is an arithmetic number, because the mean of its divisors is an integer number (1984104).

Almost surely, 2^13888686 is an apocalyptic number.

13888686 is an abundant number, since it is smaller than the sum of its proper divisors (17856978).

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

13888686 is a wasteful number, since it uses less digits than its factorization.

13888686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330695.

The product of its digits is 442368, while the sum is 48.

The square root of 13888686 is about 3726.7527419994. The cubic root of 13888686 is about 240.3737579132.

The spelling of 13888686 in words is "thirteen million, eight hundred eighty-eight thousand, six hundred eighty-six".