28604608 has 56 divisors (see below), whose sum is σ = 61228224. Its totient is φ = 13209600.

The previous prime is 28604581. The next prime is 28604627. The reversal of 28604608 is 80640682.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 66153 + ... + 66583.

Almost surely, 2^28604608 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 28604608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30614112).

28604608 is an abundant number, since it is smaller than the sum of its proper divisors (32623616).

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

28604608 is a wasteful number, since it uses less digits than its factorization.

28604608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 28604608 is about 5348.3275890693. The cubic root of 28604608 is about 305.8290015316.

The spelling of 28604608 in words is "twenty-eight million, six hundred four thousand, six hundred eight".