12616577 has 4 divisors (see below), whose sum is σ = 12629760. Its totient is φ = 12603396.

The previous prime is 12616559. The next prime is 12616579. The reversal of 12616577 is 77561621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12616577 - 2²⁰ = 11568001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12616579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5033 + ... + 7110.

It is an arithmetic number, because the mean of its divisors is an integer number (3157440).

Almost surely, 2^12616577 is an apocalyptic number.

It is an amenable number.

12616577 is a deficient number, since it is larger than the sum of its proper divisors (13183).

12616577 is a wasteful number, since it uses less digits than its factorization.

12616577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13182.

The product of its digits is 17640, while the sum is 35.

The square root of 12616577 is about 3551.9821227028. The cubic root of 12616577 is about 232.7986803832.

The spelling of 12616577 in words is "twelve million, six hundred sixteen thousand, five hundred seventy-seven".