28827904 has 36 divisors (see below), whose sum is σ = 65767744. Its totient is φ = 12354048.

The previous prime is 28827893. The next prime is 28827907. The reversal of 28827904 is 40972882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28827907) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6252 + ... + 9835.

Almost surely, 2^28827904 is an apocalyptic number.

It is an amenable number.

28827904 is an abundant number, since it is smaller than the sum of its proper divisors (36939840).

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

28827904 is an equidigital number, since it uses as much as digits as its factorization.

28827904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16110 (or 16096 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 28827904 is about 5369.1623182765. The cubic root of 28827904 is about 306.6227368286.

The spelling of 28827904 in words is "twenty-eight million, eight hundred twenty-seven thousand, nine hundred four".