12605769 has 12 divisors (see below), whose sum is σ = 19863792. Its totient is φ = 7639800.

The previous prime is 12605767. The next prime is 12605779. The reversal of 12605769 is 96750621.

It is not a de Polignac number, because 12605769 - 2¹ = 12605767 is a prime.

It is a super-2 number, since 2×12605769² = 317810824162722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12605767) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63567 + ... + 63764.

It is an arithmetic number, because the mean of its divisors is an integer number (1655316).

Almost surely, 2^12605769 is an apocalyptic number.

It is an amenable number.

12605769 is a deficient number, since it is larger than the sum of its proper divisors (7258023).

12605769 is a wasteful number, since it uses less digits than its factorization.

12605769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127348 (or 127345 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 12605769 is about 3550.4603926815. The cubic root of 12605769 is about 232.7321856716.

The spelling of 12605769 in words is "twelve million, six hundred five thousand, seven hundred sixty-nine".