12979660 has 24 divisors (see below), whose sum is σ = 28692720. Its totient is φ = 4918464.

The previous prime is 12979651. The next prime is 12979693. The reversal of 12979660 is 6697921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16699 + ... + 17458.

It is an arithmetic number, because the mean of its divisors is an integer number (1195530).

Almost surely, 2^12979660 is an apocalyptic number.

12979660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12979660 is an abundant number, since it is smaller than the sum of its proper divisors (15713060).

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

12979660 is a wasteful number, since it uses less digits than its factorization.

12979660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34185 (or 34183 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 12979660 is about 3602.7295207939. The cubic root of 12979660 is about 235.0107736120.

The spelling of 12979660 in words is "twelve million, nine hundred seventy-nine thousand, six hundred sixty".