28765124 has 6 divisors (see below), whose sum is σ = 50338974. Its totient is φ = 14382560.

The previous prime is 28765097. The next prime is 28765141. The reversal of 28765124 is 42156782.

It can be written as a sum of positive squares in only one way, i.e., 27227524 + 1537600 = 5218^2 + 1240^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3595637 + ... + 3595644.

It is an arithmetic number, because the mean of its divisors is an integer number (8389829).

Almost surely, 2^28765124 is an apocalyptic number.

It is an amenable number.

28765124 is a deficient number, since it is larger than the sum of its proper divisors (21573850).

28765124 is a wasteful number, since it uses less digits than its factorization.

28765124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7191285 (or 7191283 counting only the distinct ones).

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

The square root of 28765124 is about 5363.3127822270. The cubic root of 28765124 is about 306.3999923875.

It can be divided in two parts, 2876 and 5124, that added together give a cube (8000 = 20³).

The spelling of 28765124 in words is "twenty-eight million, seven hundred sixty-five thousand, one hundred twenty-four".