28256852 has 24 divisors (see below), whose sum is σ = 53903136. Its totient is φ = 12882528.

The previous prime is 28256849. The next prime is 28256861. The reversal of 28256852 is 25865282.

It is a happy number.

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, 1043 + ... + 7589.

It is an arithmetic number, because the mean of its divisors is an integer number (2245964).

Almost surely, 2^28256852 is an apocalyptic number.

It is an amenable number.

28256852 is a deficient number, since it is larger than the sum of its proper divisors (25646284).

28256852 is a wasteful number, since it uses less digits than its factorization.

28256852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6647 (or 6645 counting only the distinct ones).

The product of its digits is 76800, while the sum is 38.

The square root of 28256852 is about 5315.7174492255. The cubic root of 28256852 is about 304.5845889941.

The spelling of 28256852 in words is "twenty-eight million, two hundred fifty-six thousand, eight hundred fifty-two".