28248359 has 2 divisors, whose sum is σ = 28248360. Its totient is φ = 28248358.

The previous prime is 28248343. The next prime is 28248361. The reversal of 28248359 is 95384282.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28248359 - 2⁴ = 28248343 is a prime.

Together with 28248361, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28248329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14124179 + 14124180.

It is an arithmetic number, because the mean of its divisors is an integer number (14124180).

Almost surely, 2^28248359 is an apocalyptic number.

28248359 is a deficient number, since it is larger than the sum of its proper divisors (1).

28248359 is an equidigital number, since it uses as much as digits as its factorization.

28248359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 41.

The square root of 28248359 is about 5314.9185318309. The cubic root of 28248359 is about 304.5540701884.

The spelling of 28248359 in words is "twenty-eight million, two hundred forty-eight thousand, three hundred fifty-nine".