28748 has 6 divisors (see below), whose sum is σ = 50316. Its totient is φ = 14372.

The previous prime is 28729. The next prime is 28751. The reversal of 28748 is 84782.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 28748.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 28748.

It is an unprimeable number.

28748 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3590 + ... + 3597.

It is an arithmetic number, because the mean of its divisors is an integer number (8386).

2²⁸⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

28748 is a deficient number, since it is larger than the sum of its proper divisors (21568).

28748 is a wasteful number, since it uses less digits than its factorization.

28748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7191 (or 7189 counting only the distinct ones).

The product of its digits is 3584, while the sum is 29.

The square root of 28748 is about 169.5523517973. The cubic root of 28748 is about 30.6339179915.

It can be divided in two parts, 2874 and 8, that added together give a palindrome (2882).

The spelling of 28748 in words is "twenty-eight thousand, seven hundred forty-eight".