13878164 has 12 divisors (see below), whose sum is σ = 24851904. Its totient is φ = 6777624.

The previous prime is 13878149. The next prime is 13878187. The reversal of 13878164 is 46187831.

13878164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) 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 3 ways as a sum of consecutive naturals, for example, 40172 + ... + 40515.

It is an arithmetic number, because the mean of its divisors is an integer number (2070992).

Almost surely, 2^13878164 is an apocalyptic number.

It is an amenable number.

13878164 is a deficient number, since it is larger than the sum of its proper divisors (10973740).

13878164 is a wasteful number, since it uses less digits than its factorization.

13878164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80734 (or 80732 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 13878164 is about 3725.3407897802. The cubic root of 13878164 is about 240.3130405865.

The spelling of 13878164 in words is "thirteen million, eight hundred seventy-eight thousand, one hundred sixty-four".