12966780 has 24 divisors (see below), whose sum is σ = 36307152. Its totient is φ = 3457792.

The previous prime is 12966731. The next prime is 12966791. The reversal of 12966780 is 8766921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107997 + ... + 108116.

It is an arithmetic number, because the mean of its divisors is an integer number (1512798).

Almost surely, 2^12966780 is an apocalyptic number.

12966780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12966780 is an abundant number, since it is smaller than the sum of its proper divisors (23340372).

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

12966780 is a wasteful number, since it uses less digits than its factorization.

12966780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216125 (or 216123 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 12966780 is about 3600.9415435411. The cubic root of 12966780 is about 234.9330124444.

The spelling of 12966780 in words is "twelve million, nine hundred sixty-six thousand, seven hundred eighty".