12975720 has 32 divisors (see below), whose sum is σ = 38927520. Its totient is φ = 3460160.

The previous prime is 12975719. The next prime is 12975757. The reversal of 12975720 is 2757921.

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, 53946 + ... + 54185.

It is an arithmetic number, because the mean of its divisors is an integer number (1216485).

Almost surely, 2^12975720 is an apocalyptic number.

12975720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12975720 is an abundant number, since it is smaller than the sum of its proper divisors (25951800).

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

12975720 is a wasteful number, since it uses less digits than its factorization.

12975720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108145 (or 108141 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 12975720 is about 3602.1826716589. The cubic root of 12975720 is about 234.9869918860.

It can be divided in two parts, 12975 and 720, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 12975720 in words is "twelve million, nine hundred seventy-five thousand, seven hundred twenty".