28512760 has 16 divisors (see below), whose sum is σ = 64153800. Its totient is φ = 11405088.

The previous prime is 28512739. The next prime is 28512763. The reversal of 28512760 is 6721582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28512763) by changing a digit.

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, 356370 + ... + 356449.

Almost surely, 2^28512760 is an apocalyptic number.

28512760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28512760 is an abundant number, since it is smaller than the sum of its proper divisors (35641040).

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

28512760 is a wasteful number, since it uses less digits than its factorization.

28512760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712830 (or 712826 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 28512760 is about 5339.7340757757. The cubic root of 28512760 is about 305.5013165557.

The spelling of 28512760 in words is "twenty-eight million, five hundred twelve thousand, seven hundred sixty".