28879 has 2 divisors, whose sum is σ = 28880. Its totient is φ = 28878.

The previous prime is 28871. The next prime is 28901. The reversal of 28879 is 97882.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28879 - 2³ = 28871 is a prime.

It is a nialpdrome in base 15.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14439 + 14440.

It is an arithmetic number, because the mean of its divisors is an integer number (14440).

2²⁸⁸⁷⁹ is an apocalyptic number.

28879 is a deficient number, since it is larger than the sum of its proper divisors (1).

28879 is an equidigital number, since it uses as much as digits as its factorization.

28879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 34.

The square root of 28879 is about 169.9382240698. The cubic root of 28879 is about 30.6803787661.

The spelling of 28879 in words is "twenty-eight thousand, eight hundred seventy-nine".