28608522 has 8 divisors (see below), whose sum is σ = 57217056. Its totient is φ = 9536172.

The previous prime is 28608521. The next prime is 28608551. The reversal of 28608522 is 22580682.

It is a sphenic number, since it is the product of 3 distinct primes.

28608522 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28608521) 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, 2384038 + ... + 2384049.

It is an arithmetic number, because the mean of its divisors is an integer number (7152132).

Almost surely, 2^28608522 is an apocalyptic number.

28608522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28608522 is a wasteful number, since it uses less digits than its factorization.

28608522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4768092.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 28608522 is about 5348.6934853289. The cubic root of 28608522 is about 305.8429498684.

The spelling of 28608522 in words is "twenty-eight million, six hundred eight thousand, five hundred twenty-two".