28553604 has 24 divisors (see below), whose sum is σ = 68775168. Its totient is φ = 9210720.

The previous prime is 28553597. The next prime is 28553611. The reversal of 28553604 is 40635582.

It is an interprime number because it is at equal distance from previous prime (28553597) and next prime (28553611).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38007 + ... + 38750.

It is an arithmetic number, because the mean of its divisors is an integer number (2865632).

Almost surely, 2^28553604 is an apocalyptic number.

It is an amenable number.

28553604 is an abundant number, since it is smaller than the sum of its proper divisors (40221564).

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

28553604 is a wasteful number, since it uses less digits than its factorization.

28553604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76795 (or 76793 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 28553604 is about 5343.5572421375. The cubic root of 28553604 is about 305.6471219470.

The spelling of 28553604 in words is "twenty-eight million, five hundred fifty-three thousand, six hundred four".