12808863 has 24 divisors (see below), whose sum is σ = 19139328. Its totient is φ = 8250192.

The previous prime is 12808853. The next prime is 12808891. The reversal of 12808863 is 36880821.

It is not a de Polignac number, because 12808863 - 2⁴ = 12808847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12808843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45120 + ... + 45402.

It is an arithmetic number, because the mean of its divisors is an integer number (797472).

Almost surely, 2^12808863 is an apocalyptic number.

12808863 is a deficient number, since it is larger than the sum of its proper divisors (6330465).

12808863 is a wasteful number, since it uses less digits than its factorization.

12808863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 12808863 is about 3578.9471915635. The cubic root of 12808863 is about 233.9753973696.

The spelling of 12808863 in words is "twelve million, eight hundred eight thousand, eight hundred sixty-three".