12886863 has 24 divisors (see below), whose sum is σ = 19100928. Its totient is φ = 7722000.

The previous prime is 12886849. The next prime is 12886891. The reversal of 12886863 is 36868821.

12886863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-12886863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12886843) 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, 47418 + ... + 47688.

It is an arithmetic number, because the mean of its divisors is an integer number (795872).

Almost surely, 2^12886863 is an apocalyptic number.

12886863 is a deficient number, since it is larger than the sum of its proper divisors (6214065).

12886863 is a wasteful number, since it uses less digits than its factorization.

12886863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 416 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 12886863 is about 3589.8277117433. The cubic root of 12886863 is about 234.4493702477.

The spelling of 12886863 in words is "twelve million, eight hundred eighty-six thousand, eight hundred sixty-three".