28765752 has 32 divisors (see below), whose sum is σ = 72057600. Its totient is φ = 9569504.

The previous prime is 28765747. The next prime is 28765771. The reversal of 28765752 is 25756782.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16423 + ... + 18089.

It is an arithmetic number, because the mean of its divisors is an integer number (2251800).

Almost surely, 2^28765752 is an apocalyptic number.

It is an amenable number.

28765752 is an abundant number, since it is smaller than the sum of its proper divisors (43291848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28765752 is a wasteful number, since it uses less digits than its factorization.

28765752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395 (or 2391 counting only the distinct ones).

The product of its digits is 235200, while the sum is 42.

The square root of 28765752 is about 5363.3713278124. The cubic root of 28765752 is about 306.4022221455.

The spelling of 28765752 in words is "twenty-eight million, seven hundred sixty-five thousand, seven hundred fifty-two".