28547 has 2 divisors, whose sum is σ = 28548. Its totient is φ = 28546.

The previous prime is 28541. The next prime is 28549. The reversal of 28547 is 74582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28547 - 2¹⁴ = 12163 is a prime.

Together with 28549, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 28547.

It is not a weakly prime, because it can be changed into another prime (28541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14273 + 14274.

It is an arithmetic number, because the mean of its divisors is an integer number (14274).

28547 is a Friedman number, since it can be written as (8+5)^4-7*2, using all its digits and the basic arithmetic operations.

2²⁸⁵⁴⁷ is an apocalyptic number.

28547 is a deficient number, since it is larger than the sum of its proper divisors (1).

28547 is an equidigital number, since it uses as much as digits as its factorization.

28547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2240, while the sum is 26.

The square root of 28547 is about 168.9585748046. The cubic root of 28547 is about 30.5623556338.

It can be divided in two parts, 28 and 547, that added together give a palindrome (575).

The spelling of 28547 in words is "twenty-eight thousand, five hundred forty-seven".