12863904 has 24 divisors (see below), whose sum is σ = 33768000. Its totient is φ = 4287936.

The previous prime is 12863897. The next prime is 12863927. The reversal of 12863904 is 40936821.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×12863904² = 330960052242432, which contains 22 as substring.

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, 66904 + ... + 67095.

It is an arithmetic number, because the mean of its divisors is an integer number (1407000).

Almost surely, 2^12863904 is an apocalyptic number.

It is an amenable number.

12863904 is an abundant number, since it is smaller than the sum of its proper divisors (20904096).

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

12863904 is a wasteful number, since it uses less digits than its factorization.

12863904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134012 (or 134004 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 12863904 is about 3586.6285004165. The cubic root of 12863904 is about 234.3100572423.

The spelling of 12863904 in words is "twelve million, eight hundred sixty-three thousand, nine hundred four".