28325568 has 56 divisors (see below), whose sum is σ = 77378560. Its totient is φ = 9135360.

The previous prime is 28325567. The next prime is 28325573. The reversal of 28325568 is 86552382.

It is not an unprimeable number, because it can be changed into a prime (28325567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3573 + ... + 8331.

It is an arithmetic number, because the mean of its divisors is an integer number (1381760).

Almost surely, 2^28325568 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 28325568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38689280).

28325568 is an abundant number, since it is smaller than the sum of its proper divisors (49052992).

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

28325568 is a wasteful number, since it uses less digits than its factorization.

28325568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805 (or 4795 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 28325568 is about 5322.1769981841. The cubic root of 28325568 is about 304.8312889394.

The spelling of 28325568 in words is "twenty-eight million, three hundred twenty-five thousand, five hundred sixty-eight".