12810879 has 20 divisors (see below), whose sum is σ = 19326120. Its totient is φ = 8456400.

The previous prime is 12810857. The next prime is 12810881. The reversal of 12810879 is 97801821.

It is not a de Polignac number, because 12810879 - 2¹⁵ = 12778111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12810829) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8104 + ... + 9554.

It is an arithmetic number, because the mean of its divisors is an integer number (966306).

Almost surely, 2^12810879 is an apocalyptic number.

12810879 is a deficient number, since it is larger than the sum of its proper divisors (6515241).

12810879 is a wasteful number, since it uses less digits than its factorization.

12810879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572 (or 1563 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 12810879 is about 3579.2288275549. The cubic root of 12810879 is about 233.9876719343.

It can be divided in two parts, 12810 and 879, that added together give a square (13689 = 117²).

The spelling of 12810879 in words is "twelve million, eight hundred ten thousand, eight hundred seventy-nine".