28325584 has 40 divisors (see below), whose sum is σ = 64067328. Its totient is φ = 11879040.

The previous prime is 28325579. The next prime is 28325593. The reversal of 28325584 is 48552382.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2574 + ... + 7954.

Almost surely, 2^28325584 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28325584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32033664).

28325584 is an abundant number, since it is smaller than the sum of its proper divisors (35741744).

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

28325584 is a wasteful number, since it uses less digits than its factorization.

28325584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5443 (or 5437 counting only the distinct ones).

The product of its digits is 76800, while the sum is 37.

The square root of 28325584 is about 5322.1785013282. The cubic root of 28325584 is about 304.8313463352.

The spelling of 28325584 in words is "twenty-eight million, three hundred twenty-five thousand, five hundred eighty-four".