28760 has 16 divisors (see below), whose sum is σ = 64800. Its totient is φ = 11488.

The previous prime is 28759. The next prime is 28771. The reversal of 28760 is 6782.

28760 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

28760 is strictly pandigital in base 6.

It is a plaindrome in base 12.

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, 320 + ... + 399.

It is an arithmetic number, because the mean of its divisors is an integer number (4050).

2²⁸⁷⁶⁰ is an apocalyptic number.

28760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28760 is an abundant number, since it is smaller than the sum of its proper divisors (36040).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32400).

28760 is a wasteful number, since it uses less digits than its factorization.

28760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 726 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 28760 is about 169.5877354056. The cubic root of 28760 is about 30.6381798054.

The spelling of 28760 in words is "twenty-eight thousand, seven hundred sixty".