28756124 has 12 divisors (see below), whose sum is σ = 50404200. Its totient is φ = 14354928.

The previous prime is 28756103. The next prime is 28756153. The reversal of 28756124 is 42165782.

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 3 ways as a sum of consecutive naturals, for example, 2819 + ... + 8090.

It is an arithmetic number, because the mean of its divisors is an integer number (4200350).

Almost surely, 2^28756124 is an apocalyptic number.

It is an amenable number.

28756124 is a deficient number, since it is larger than the sum of its proper divisors (21648076).

28756124 is a wasteful number, since it uses less digits than its factorization.

28756124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11572 (or 11570 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 28756124 is about 5362.4736829191. The cubic root of 28756124 is about 306.3680336913.

The spelling of 28756124 in words is "twenty-eight million, seven hundred fifty-six thousand, one hundred twenty-four".