28804550 has 24 divisors (see below), whose sum is σ = 54887112. Its totient is φ = 11240000.

The previous prime is 28804547. The next prime is 28804571. The reversal of 28804550 is 5540882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4976 + ... + 9075.

It is an arithmetic number, because the mean of its divisors is an integer number (2286963).

Almost surely, 2^28804550 is an apocalyptic number.

28804550 is a deficient number, since it is larger than the sum of its proper divisors (26082562).

28804550 is a wasteful number, since it uses less digits than its factorization.

28804550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14104 (or 14099 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 28804550 is about 5366.9870504781. The cubic root of 28804550 is about 306.5399142737.

The spelling of 28804550 in words is "twenty-eight million, eight hundred four thousand, five hundred fifty".