28604550 has 48 divisors (see below), whose sum is σ = 76401360. Its totient is φ = 7040640.

The previous prime is 28604549. The next prime is 28604567. The reversal of 28604550 is 5540682.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5385 + ... + 9284.

It is an arithmetic number, because the mean of its divisors is an integer number (1591695).

Almost surely, 2^28604550 is an apocalyptic number.

28604550 is an abundant number, since it is smaller than the sum of its proper divisors (47796810).

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

28604550 is a wasteful number, since it uses less digits than its factorization.

28604550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14697 (or 14692 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 28604550 is about 5348.3221668108. The cubic root of 28604550 is about 305.8287948272.

The spelling of 28604550 in words is "twenty-eight million, six hundred four thousand, five hundred fifty".