13888764 has 36 divisors (see below), whose sum is σ = 36060024. Its totient is φ = 4504032.

The previous prime is 13888759. The next prime is 13888769. The reversal of 13888764 is 46788831.

It is an interprime number because it is at equal distance from previous prime (13888759) and next prime (13888769).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13888769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3882 + ... + 6545.

Almost surely, 2^13888764 is an apocalyptic number.

It is an amenable number.

13888764 is an abundant number, since it is smaller than the sum of its proper divisors (22171260).

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

13888764 is a wasteful number, since it uses less digits than its factorization.

13888764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10474 (or 10469 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 13888764 is about 3726.7632068593. The cubic root of 13888764 is about 240.3742078986.

The spelling of 13888764 in words is "thirteen million, eight hundred eighty-eight thousand, seven hundred sixty-four".