12879558 has 24 divisors (see below), whose sum is σ = 27998568. Its totient is φ = 4278912.

The previous prime is 12879553. The next prime is 12879569. The reversal of 12879558 is 85597821.

It is a happy number.

12879558 is a `hidden beast` number, since 1 + 28 + 79 + 558 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12879553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5341 + ... + 7367.

It is an arithmetic number, because the mean of its divisors is an integer number (1166607).

Almost surely, 2^12879558 is an apocalyptic number.

12879558 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12879558 is an abundant number, since it is smaller than the sum of its proper divisors (15119010).

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

12879558 is a wasteful number, since it uses less digits than its factorization.

12879558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388 (or 2385 counting only the distinct ones).

The product of its digits is 201600, while the sum is 45.

The square root of 12879558 is about 3588.8101092145. The cubic root of 12879558 is about 234.4050621706.

The spelling of 12879558 in words is "twelve million, eight hundred seventy-nine thousand, five hundred fifty-eight".