28752312 has 16 divisors (see below), whose sum is σ = 71880840. Its totient is φ = 9584096.

The previous prime is 28752307. The next prime is 28752329. The reversal of 28752312 is 21325782.

It is a self number, because there is not a number n which added to its sum of digits gives 28752312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598983 + ... + 599030.

Almost surely, 2^28752312 is an apocalyptic number.

It is an amenable number.

28752312 is an abundant number, since it is smaller than the sum of its proper divisors (43128528).

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

28752312 is a wasteful number, since it uses less digits than its factorization.

28752312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198022 (or 1198018 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 28752312 is about 5362.1182381592. The cubic root of 28752312 is about 306.3544953976.

The spelling of 28752312 in words is "twenty-eight million, seven hundred fifty-two thousand, three hundred twelve".