12879980 has 24 divisors (see below), whose sum is σ = 27176688. Its totient is φ = 5127488.

The previous prime is 12879947. The next prime is 12879983. The reversal of 12879980 is 8997821.

It is not an unprimeable number, because it can be changed into a prime (12879983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3122 + ... + 5958.

It is an arithmetic number, because the mean of its divisors is an integer number (1132362).

Almost surely, 2^12879980 is an apocalyptic number.

12879980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12879980 is an abundant number, since it is smaller than the sum of its proper divisors (14296708).

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

12879980 is a wasteful number, since it uses less digits than its factorization.

12879980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3073 (or 3071 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 12879980 is about 3588.8689025931. The cubic root of 12879980 is about 234.4076222443.

It can be divided in two parts, 128 and 79980, that added together give a palindrome (80108).

The spelling of 12879980 in words is "twelve million, eight hundred seventy-nine thousand, nine hundred eighty".