28806585 has 16 divisors (see below), whose sum is σ = 48802176. Its totient is φ = 14459648.

The previous prime is 28806577. The next prime is 28806607. The reversal of 28806585 is 58560882.

It is a cyclic number.

It is not a de Polignac number, because 28806585 - 2³ = 28806577 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 56229 + ... + 56738.

It is an arithmetic number, because the mean of its divisors is an integer number (3050136).

Almost surely, 2^28806585 is an apocalyptic number.

It is an amenable number.

28806585 is a deficient number, since it is larger than the sum of its proper divisors (19995591).

28806585 is a wasteful number, since it uses less digits than its factorization.

28806585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112992.

The product of its (nonzero) digits is 153600, while the sum is 42.

The square root of 28806585 is about 5367.1766320851. The cubic root of 28806585 is about 306.5471329716.

The spelling of 28806585 in words is "twenty-eight million, eight hundred six thousand, five hundred eighty-five".