13889008 has 40 divisors (see below), whose sum is σ = 30935520. Its totient is φ = 5917440.

The previous prime is 13888997. The next prime is 13889027. The reversal of 13889008 is 80098831.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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, 29898 + ... + 30358.

It is an arithmetic number, because the mean of its divisors is an integer number (773388).

Almost surely, 2^13889008 is an apocalyptic number.

13889008 is the 2152-nd octagonal number.

It is an amenable number.

13889008 is an abundant number, since it is smaller than the sum of its proper divisors (17046512).

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

13889008 is a wasteful number, since it uses less digits than its factorization.

13889008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745 (or 739 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 13889008 is about 3726.7959428979. The cubic root of 13889008 is about 240.3756155344.

The spelling of 13889008 in words is "thirteen million, eight hundred eighty-nine thousand, eight".