12977560 has 16 divisors (see below), whose sum is σ = 29199600. Its totient is φ = 5191008.

The previous prime is 12977539. The next prime is 12977597. The reversal of 12977560 is 6577921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162180 + ... + 162259.

It is an arithmetic number, because the mean of its divisors is an integer number (1824975).

Almost surely, 2^12977560 is an apocalyptic number.

12977560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12977560 is an abundant number, since it is smaller than the sum of its proper divisors (16222040).

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

12977560 is a wasteful number, since it uses less digits than its factorization.

12977560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324450 (or 324446 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 12977560 is about 3602.4380633121. The cubic root of 12977560 is about 234.9980986718.

The spelling of 12977560 in words is "twelve million, nine hundred seventy-seven thousand, five hundred sixty".