28522904 has 16 divisors (see below), whose sum is σ = 54490320. Its totient is φ = 13992160.

The previous prime is 28522903. The next prime is 28522919. The reversal of 28522904 is 40922582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28522903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33212 + ... + 34059.

It is an arithmetic number, because the mean of its divisors is an integer number (3405645).

Almost surely, 2^28522904 is an apocalyptic number.

It is an amenable number.

28522904 is a deficient number, since it is larger than the sum of its proper divisors (25967416).

28522904 is a wasteful number, since it uses less digits than its factorization.

28522904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67330 (or 67326 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 28522904 is about 5340.6838513434. The cubic root of 28522904 is about 305.5375417161.

The spelling of 28522904 in words is "twenty-eight million, five hundred twenty-two thousand, nine hundred four".