28500916 has 12 divisors (see below), whose sum is σ = 51036832. Its totient is φ = 13918968.

The previous prime is 28500883. The next prime is 28500919. The reversal of 28500916 is 61900582.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28500919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82680 + ... + 83023.

Almost surely, 2^28500916 is an apocalyptic number.

It is an amenable number.

28500916 is a deficient number, since it is larger than the sum of its proper divisors (22535916).

28500916 is a wasteful number, since it uses less digits than its factorization.

28500916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165750 (or 165748 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 28500916 is about 5338.6249165867. The cubic root of 28500916 is about 305.4590096643.

The spelling of 28500916 in words is "twenty-eight million, five hundred thousand, nine hundred sixteen".