12597880 has 32 divisors (see below), whose sum is σ = 28952640. Its totient is φ = 4931200.

The previous prime is 12597863. The next prime is 12597881. The reversal of 12597880 is 8879521.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12597881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1471 + ... + 5230.

It is an arithmetic number, because the mean of its divisors is an integer number (904770).

Almost surely, 2^12597880 is an apocalyptic number.

12597880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12597880 is an abundant number, since it is smaller than the sum of its proper divisors (16354760).

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

12597880 is a wasteful number, since it uses less digits than its factorization.

12597880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6759 (or 6755 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 12597880 is about 3549.3492361277. The cubic root of 12597880 is about 232.6836256999.

The spelling of 12597880 in words is "twelve million, five hundred ninety-seven thousand, eight hundred eighty".