28568984 has 16 divisors (see below), whose sum is σ = 54445920. Its totient is φ = 14050080.

The previous prime is 28568977. The next prime is 28568987. The reversal of 28568984 is 48986582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28568987) 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, 28784 + ... + 29759.

It is an arithmetic number, because the mean of its divisors is an integer number (3402870).

Almost surely, 2^28568984 is an apocalyptic number.

It is an amenable number.

28568984 is a deficient number, since it is larger than the sum of its proper divisors (25876936).

28568984 is a wasteful number, since it uses less digits than its factorization.

28568984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58610 (or 58606 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 50.

The square root of 28568984 is about 5344.9961646385. The cubic root of 28568984 is about 305.7019896148.

The spelling of 28568984 in words is "twenty-eight million, five hundred sixty-eight thousand, nine hundred eighty-four".