12879678 has 64 divisors (see below), whose sum is σ = 31334400. Its totient is φ = 3449952.

The previous prime is 12879667. The next prime is 12879679. The reversal of 12879678 is 87697821.

12879678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12879678² = 331772210767368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12879679) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64623 + ... + 64821.

It is an arithmetic number, because the mean of its divisors is an integer number (489600).

Almost surely, 2^12879678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12879678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15667200).

12879678 is an abundant number, since it is smaller than the sum of its proper divisors (18454722).

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

12879678 is a wasteful number, since it uses less digits than its factorization.

12879678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301.

The product of its digits is 338688, while the sum is 48.

The square root of 12879678 is about 3588.8268278088. The cubic root of 12879678 is about 234.4057901593.

The spelling of 12879678 in words is "twelve million, eight hundred seventy-nine thousand, six hundred seventy-eight".