12585865 has 16 divisors (see below), whose sum is σ = 16080768. Its totient is φ = 9423616.

The previous prime is 12585863. The next prime is 12585869. The reversal of 12585865 is 56858521.

12585865 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12585865 - 2¹ = 12585863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12585863) 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, 22074 + ... + 22636.

It is an arithmetic number, because the mean of its divisors is an integer number (1005048).

Almost surely, 2^12585865 is an apocalyptic number.

It is an amenable number.

12585865 is a deficient number, since it is larger than the sum of its proper divisors (3494903).

12585865 is a wasteful number, since it uses less digits than its factorization.

12585865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848.

The product of its digits is 96000, while the sum is 40.

The square root of 12585865 is about 3547.6562685807. The cubic root of 12585865 is about 232.6096295722.

The spelling of 12585865 in words is "twelve million, five hundred eighty-five thousand, eight hundred sixty-five".