13808688 has 20 divisors (see below), whose sum is σ = 35672568. Its totient is φ = 4602880.

The previous prime is 13808681. The next prime is 13808689. The reversal of 13808688 is 88680831.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13808681) 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, 143793 + ... + 143888.

Almost surely, 2^13808688 is an apocalyptic number.

It is an amenable number.

13808688 is an abundant number, since it is smaller than the sum of its proper divisors (21863880).

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

13808688 is a wasteful number, since it uses less digits than its factorization.

13808688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287692 (or 287686 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 13808688 is about 3716.0043057026. The cubic root of 13808688 is about 239.9113561524.

The spelling of 13808688 in words is "thirteen million, eight hundred eight thousand, six hundred eighty-eight".