12878879 has 16 divisors (see below), whose sum is σ = 14445984. Its totient is φ = 11404800.

The previous prime is 12878863. The next prime is 12878881. The reversal of 12878879 is 97887821.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12878879 - 2⁴ = 12878863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12878839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38744 + ... + 39074.

It is an arithmetic number, because the mean of its divisors is an integer number (902874).

Almost surely, 2^12878879 is an apocalyptic number.

12878879 is a deficient number, since it is larger than the sum of its proper divisors (1567105).

12878879 is a wasteful number, since it uses less digits than its factorization.

12878879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458.

The product of its digits is 451584, while the sum is 50.

The square root of 12878879 is about 3588.7155083679. The cubic root of 12878879 is about 234.4009428824.

The spelling of 12878879 in words is "twelve million, eight hundred seventy-eight thousand, eight hundred seventy-nine".