28683 has 6 divisors (see below), whose sum is σ = 41444. Its totient is φ = 19116.

The previous prime is 28669. The next prime is 28687. The reversal of 28683 is 38682.

It is not a de Polignac number, because 28683 - 2⁶ = 28619 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9 and base 15.

It is not an unprimeable number, because it can be changed into a prime (28687) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1585 + ... + 1602.

2²⁸⁶⁸³ is an apocalyptic number.

28683 is a deficient number, since it is larger than the sum of its proper divisors (12761).

28683 is a wasteful number, since it uses less digits than its factorization.

28683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3193 (or 3190 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 28683 is about 169.3605621153. The cubic root of 28683 is about 30.6108125316.

Subtracting 28683 from its reverse (38682), we obtain a palindrome (9999).

The spelling of 28683 in words is "twenty-eight thousand, six hundred eighty-three".