28927 has 2 divisors, whose sum is σ = 28928. Its totient is φ = 28926.

The previous prime is 28921. The next prime is 28933. The reversal of 28927 is 72982.

It is a balanced prime because it is at equal distance from previous prime (28921) and next prime (28933).

It is a cyclic number.

It is not a de Polignac number, because 28927 - 2¹¹ = 26879 is a prime.

It is a Chen prime.

It is a nialpdrome in base 15.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 28895 and 28904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14463 + 14464.

It is an arithmetic number, because the mean of its divisors is an integer number (14464).

2²⁸⁹²⁷ is an apocalyptic number.

28927 is a deficient number, since it is larger than the sum of its proper divisors (1).

28927 is an equidigital number, since it uses as much as digits as its factorization.

28927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 28.

The square root of 28927 is about 170.0793932256. The cubic root of 28927 is about 30.6973673856.

The spelling of 28927 in words is "twenty-eight thousand, nine hundred twenty-seven".