12597959 has 4 divisors (see below), whose sum is σ = 13743240. Its totient is φ = 11452680.

The previous prime is 12597917. The next prime is 12597961. The reversal of 12597959 is 95979521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12597959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12597059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572624 + ... + 572645.

It is an arithmetic number, because the mean of its divisors is an integer number (3435810).

Almost surely, 2^12597959 is an apocalyptic number.

12597959 is a deficient number, since it is larger than the sum of its proper divisors (1145281).

12597959 is a wasteful number, since it uses less digits than its factorization.

12597959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145280.

The product of its digits is 255150, while the sum is 47.

The square root of 12597959 is about 3549.3603649108. The cubic root of 12597959 is about 232.6841120772.

The spelling of 12597959 in words is "twelve million, five hundred ninety-seven thousand, nine hundred fifty-nine".