13887824 has 20 divisors (see below), whose sum is σ = 26965536. Its totient is φ = 6928992.

The previous prime is 13887823. The next prime is 13887857. The reversal of 13887824 is 42878831.

13887824 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 (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13887821) 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, 13637 + ... + 14619.

Almost surely, 2^13887824 is an apocalyptic number.

It is an amenable number.

13887824 is a deficient number, since it is larger than the sum of its proper divisors (13077712).

13887824 is an equidigital number, since it uses as much as digits as its factorization.

13887824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874 (or 1868 counting only the distinct ones).

The product of its digits is 86016, while the sum is 41.

The square root of 13887824 is about 3726.6370899244. The cubic root of 13887824 is about 240.3687848854.

The spelling of 13887824 in words is "thirteen million, eight hundred eighty-seven thousand, eight hundred twenty-four".