28784984 has 16 divisors (see below), whose sum is σ = 54036600. Its totient is φ = 14375232.

The previous prime is 28784971. The next prime is 28784999. The reversal of 28784984 is 48948782.

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, 7439 + ... + 10625.

Almost surely, 2^28784984 is an apocalyptic number.

It is an amenable number.

28784984 is a deficient number, since it is larger than the sum of its proper divisors (25251616).

28784984 is a wasteful number, since it uses less digits than its factorization.

28784984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4322 (or 4318 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 50.

The square root of 28784984 is about 5365.1639303939. The cubic root of 28784984 is about 306.4704909997.

The spelling of 28784984 in words is "twenty-eight million, seven hundred eighty-four thousand, nine hundred eighty-four".