28349585 has 16 divisors (see below), whose sum is σ = 38117952. Its totient is φ = 20059200.

The previous prime is 28349569. The next prime is 28349597. The reversal of 28349585 is 58594382.

It is not a de Polignac number, because 28349585 - 2⁴ = 28349569 is a prime.

It is a Duffinian number.

It is a Curzon 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, 4931 + ... + 9000.

It is an arithmetic number, because the mean of its divisors is an integer number (2382372).

Almost surely, 2^28349585 is an apocalyptic number.

It is an amenable number.

28349585 is a deficient number, since it is larger than the sum of its proper divisors (9768367).

28349585 is a wasteful number, since it uses less digits than its factorization.

28349585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13984.

The product of its digits is 345600, while the sum is 44.

The square root of 28349585 is about 5324.4328336453. The cubic root of 28349585 is about 304.9174191907.

The spelling of 28349585 in words is "twenty-eight million, three hundred forty-nine thousand, five hundred eighty-five".