12604805 has 16 divisors (see below), whose sum is σ = 16156800. Its totient is φ = 9417408.

The previous prime is 12604793. The next prime is 12604829. The reversal of 12604805 is 50840621.

It is a cyclic number.

It is not a de Polignac number, because 12604805 - 2⁶ = 12604741 is a prime.

It is a super-2 number, since 2×12604805² = 317762218176050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3671 + ... + 6219.

It is an arithmetic number, because the mean of its divisors is an integer number (1009800).

Almost surely, 2^12604805 is an apocalyptic number.

It is an amenable number.

12604805 is a deficient number, since it is larger than the sum of its proper divisors (3551995).

12604805 is a wasteful number, since it uses less digits than its factorization.

12604805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 12604805 is about 3550.3246330441. The cubic root of 12604805 is about 232.7262529502.

The spelling of 12604805 in words is "twelve million, six hundred four thousand, eight hundred five".