28763 has 6 divisors (see below), whose sum is σ = 33516. Its totient is φ = 24612.

The previous prime is 28759. The next prime is 28771. The reversal of 28763 is 36782.

It is not a de Polignac number, because 28763 - 2² = 28759 is a prime.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (28703) 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, 245 + ... + 342.

It is an arithmetic number, because the mean of its divisors is an integer number (5586).

2²⁸⁷⁶³ is an apocalyptic number.

28763 is a deficient number, since it is larger than the sum of its proper divisors (4753).

28763 is an equidigital number, since it uses as much as digits as its factorization.

28763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601 (or 594 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 28763 is about 169.5965801542. The cubic root of 28763 is about 30.6392450736.

It can be divided in two parts, 287 and 63, that multiplied together give a palindrome (18081).

The spelling of 28763 in words is "twenty-eight thousand, seven hundred sixty-three".