28843 has 2 divisors, whose sum is σ = 28844. Its totient is φ = 28842.

The previous prime is 28837. The next prime is 28859. The reversal of 28843 is 34882.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28843 is a prime.

28843 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (28813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14421 + 14422.

It is an arithmetic number, because the mean of its divisors is an integer number (14422).

2²⁸⁸⁴³ is an apocalyptic number.

28843 is a deficient number, since it is larger than the sum of its proper divisors (1).

28843 is an equidigital number, since it uses as much as digits as its factorization.

28843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 25.

The square root of 28843 is about 169.8322701962. The cubic root of 28843 is about 30.6676249438.

The spelling of 28843 in words is "twenty-eight thousand, eight hundred forty-three".