28304984 has 32 divisors (see below), whose sum is σ = 57676800. Its totient is φ = 12972960.

The previous prime is 28304971. The next prime is 28304993. The reversal of 28304984 is 48940382.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1709 + ... + 7715.

It is an arithmetic number, because the mean of its divisors is an integer number (1802400).

Almost surely, 2^28304984 is an apocalyptic number.

It is an amenable number.

28304984 is an abundant number, since it is smaller than the sum of its proper divisors (29371816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28304984 is a wasteful number, since it uses less digits than its factorization.

28304984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6063 (or 6059 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 28304984 is about 5320.2428515999. The cubic root of 28304984 is about 304.7574314293.

The spelling of 28304984 in words is "twenty-eight million, three hundred four thousand, nine hundred eighty-four".