13688516 has 24 divisors (see below), whose sum is σ = 24526656. Its totient is φ = 6683040.

The previous prime is 13688503. The next prime is 13688527. The reversal of 13688516 is 61588631.

It is a happy number.

13688516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13688516.

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, 44435 + ... + 44741.

It is an arithmetic number, because the mean of its divisors is an integer number (1021944).

Almost surely, 2^13688516 is an apocalyptic number.

It is an amenable number.

13688516 is a deficient number, since it is larger than the sum of its proper divisors (10838140).

13688516 is a wasteful number, since it uses less digits than its factorization.

13688516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 537 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 13688516 is about 3699.7994540245. The cubic root of 13688516 is about 239.2133736366.

The spelling of 13688516 in words is "thirteen million, six hundred eighty-eight thousand, five hundred sixteen".