28548 has 36 divisors (see below), whose sum is σ = 78988. Its totient is φ = 8640.

The previous prime is 28547. The next prime is 28549. The reversal of 28548 is 84582.

28548 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (28547) and next prime (28549).

It can be written as a sum of positive squares in 2 ways, for example, as 2304 + 26244 = 48^2 + 162^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a nialpdrome in base 13.

It is a zygodrome in base 3.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 28548.

It is not an unprimeable number, because it can be changed into a prime (28541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 438 + ... + 498.

2²⁸⁵⁴⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39494).

28548 is an abundant number, since it is smaller than the sum of its proper divisors (50440).

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

28548 is a wasteful number, since it uses less digits than its factorization.

28548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 79 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 28548 is about 168.9615340839. The cubic root of 28548 is about 30.5627124955.

It can be divided in two parts, 285 and 48, that added together give a palindrome (333).

The spelling of 28548 in words is "twenty-eight thousand, five hundred forty-eight".