12785585 has 16 divisors (see below), whose sum is σ = 16239744. Its totient is φ = 9643392.

The previous prime is 12785579. The next prime is 12785587. The reversal of 12785585 is 58558721.

12785585 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12785585 - 2¹⁶ = 12720049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12785587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7634 + ... + 9156.

It is an arithmetic number, because the mean of its divisors is an integer number (1014984).

Almost surely, 2^12785585 is an apocalyptic number.

It is an amenable number.

12785585 is a deficient number, since it is larger than the sum of its proper divisors (3454159).

12785585 is a wasteful number, since it uses less digits than its factorization.

12785585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624.

The product of its digits is 112000, while the sum is 41.

The square root of 12785585 is about 3575.6936390021. The cubic root of 12785585 is about 233.8335741649.

The spelling of 12785585 in words is "twelve million, seven hundred eighty-five thousand, five hundred eighty-five".