28913204 has 24 divisors (see below), whose sum is σ = 52448256. Its totient is φ = 13932000.

The previous prime is 28913191. The next prime is 28913221. The reversal of 28913204 is 40231982.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 53174 + ... + 53714.

It is an arithmetic number, because the mean of its divisors is an integer number (2185344).

Almost surely, 2^28913204 is an apocalyptic number.

It is an amenable number.

28913204 is a deficient number, since it is larger than the sum of its proper divisors (23535052).

28913204 is a wasteful number, since it uses less digits than its factorization.

28913204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007 (or 1005 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 28913204 is about 5377.0999618754. The cubic root of 28913204 is about 306.9248649893.

The spelling of 28913204 in words is "twenty-eight million, nine hundred thirteen thousand, two hundred four".