28068804 has 27 divisors (see below), whose sum is σ = 71032143. Its totient is φ = 9345672.

The previous prime is 28068791. The next prime is 28068841. The reversal of 28068804 is 40886082.

The square root of 28068804 is 5298.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 31347 + ... + 32229.

Almost surely, 2^28068804 is an apocalyptic number.

28068804 is the 5298-th square number.

It is an amenable number.

28068804 is an abundant number, since it is smaller than the sum of its proper divisors (42963339).

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

28068804 is an equidigital number, since it uses as much as digits as its factorization.

28068804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The cubic root of 28068804 is about 303.9074192920.

Multiplying 28068804 by its sum of digits (36), we get a square (1010476944 = 31788²).

28068804 divided by its sum of digits (36) gives a square (779689 = 883²).

The spelling of 28068804 in words is "twenty-eight million, sixty-eight thousand, eight hundred four".