28327585 has 16 divisors (see below), whose sum is σ = 39936960. Its totient is φ = 19016640.

The previous prime is 28327573. The next prime is 28327591. The reversal of 28327585 is 58572382.

It is not a de Polignac number, because 28327585 - 2⁵ = 28327553 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, 19095 + ... + 20524.

It is an arithmetic number, because the mean of its divisors is an integer number (2496060).

Almost surely, 2^28327585 is an apocalyptic number.

It is an amenable number.

28327585 is a deficient number, since it is larger than the sum of its proper divisors (11609375).

28327585 is a wasteful number, since it uses less digits than its factorization.

28327585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39648.

The product of its digits is 134400, while the sum is 40.

The square root of 28327585 is about 5322.3664849388. The cubic root of 28327585 is about 304.8385242179.

The spelling of 28327585 in words is "twenty-eight million, three hundred twenty-seven thousand, five hundred eighty-five".