12975780 has 24 divisors (see below), whose sum is σ = 36332352. Its totient is φ = 3460192.

The previous prime is 12975779. The next prime is 12975791. The reversal of 12975780 is 8757921.

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, 108072 + ... + 108191.

It is an arithmetic number, because the mean of its divisors is an integer number (1513848).

Almost surely, 2^12975780 is an apocalyptic number.

12975780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12975780 is an abundant number, since it is smaller than the sum of its proper divisors (23356572).

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

12975780 is a wasteful number, since it uses less digits than its factorization.

12975780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216275 (or 216273 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 12975780 is about 3602.1909999332. The cubic root of 12975780 is about 234.9873540803.

The spelling of 12975780 in words is "twelve million, nine hundred seventy-five thousand, seven hundred eighty".