2845865 has 16 divisors (see below), whose sum is σ = 3792960. Its totient is φ = 2032320.

The previous prime is 2845853. The next prime is 2845873. The reversal of 2845865 is 5685482.

It is not a de Polignac number, because 2845865 - 2¹⁶ = 2780329 is a prime.

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, 2807 + ... + 3683.

It is an arithmetic number, because the mean of its divisors is an integer number (237060).

2^2845865 is an apocalyptic number.

It is an amenable number.

2845865 is a deficient number, since it is larger than the sum of its proper divisors (947095).

2845865 is a wasteful number, since it uses less digits than its factorization.

2845865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952.

The product of its digits is 76800, while the sum is 38.

The square root of 2845865 is about 1686.9691757706. The cubic root of 2845865 is about 141.7113922604.

The spelling of 2845865 in words is "two million, eight hundred forty-five thousand, eight hundred sixty-five".