12879790 has 64 divisors (see below), whose sum is σ = 29652480. Its totient is φ = 3911040.

The previous prime is 12879773. The next prime is 12879827. The reversal of 12879790 is 9797821.

It is a happy number.

12879790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32916 + ... + 33304.

It is an arithmetic number, because the mean of its divisors is an integer number (463320).

Almost surely, 2^12879790 is an apocalyptic number.

12879790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12879790 is an abundant number, since it is smaller than the sum of its proper divisors (16772690).

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

12879790 is a wasteful number, since it uses less digits than its factorization.

12879790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457.

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 12879790 is about 3588.8424317599. The cubic root of 12879790 is about 234.4064696114.

The spelling of 12879790 in words is "twelve million, eight hundred seventy-nine thousand, seven hundred ninety".