28585916 has 12 divisors (see below), whose sum is σ = 50068200. Its totient is φ = 14280720.

The previous prime is 28585901. The next prime is 28585939. The reversal of 28585916 is 61958582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4010 + ... + 8558.

It is an arithmetic number, because the mean of its divisors is an integer number (4172350).

Almost surely, 2^28585916 is an apocalyptic number.

It is an amenable number.

28585916 is a deficient number, since it is larger than the sum of its proper divisors (21482284).

28585916 is a wasteful number, since it uses less digits than its factorization.

28585916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6124 (or 6122 counting only the distinct ones).

The product of its digits is 172800, while the sum is 44.

The square root of 28585916 is about 5346.5798413565. The cubic root of 28585916 is about 305.7623712259.

The spelling of 28585916 in words is "twenty-eight million, five hundred eighty-five thousand, nine hundred sixteen".