13863856 has 20 divisors (see below), whose sum is σ = 27788400. Its totient is φ = 6692672.

The previous prime is 13863799. The next prime is 13863907. The reversal of 13863856 is 65836831.

13863856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 14476 + ... + 15403.

It is an arithmetic number, because the mean of its divisors is an integer number (1389420).

Almost surely, 2^13863856 is an apocalyptic number.

13863856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13863856 is an abundant number, since it is smaller than the sum of its proper divisors (13924544).

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

13863856 is a wasteful number, since it uses less digits than its factorization.

13863856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29916 (or 29910 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 13863856 is about 3723.4199333409. The cubic root of 13863856 is about 240.2304268418.

The spelling of 13863856 in words is "thirteen million, eight hundred sixty-three thousand, eight hundred fifty-six".