13886988 has 24 divisors (see below), whose sum is σ = 33279792. Its totient is φ = 4503744.

The previous prime is 13886981. The next prime is 13886989. The reversal of 13886988 is 88968831.

It is a happy number.

13886988 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 13886988.

It is not an unprimeable number, because it can be changed into a prime (13886981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15195 + ... + 16082.

It is an arithmetic number, because the mean of its divisors is an integer number (1386658).

Almost surely, 2^13886988 is an apocalyptic number.

It is an amenable number.

13886988 is an abundant number, since it is smaller than the sum of its proper divisors (19392804).

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

13886988 is a wasteful number, since it uses less digits than its factorization.

13886988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31321 (or 31319 counting only the distinct ones).

The product of its digits is 663552, while the sum is 51.

The square root of 13886988 is about 3726.5249227665. The cubic root of 13886988 is about 240.3639616595.

The spelling of 13886988 in words is "thirteen million, eight hundred eighty-six thousand, nine hundred eighty-eight".