28338859 has 2 divisors, whose sum is σ = 28338860. Its totient is φ = 28338858.

The previous prime is 28338857. The next prime is 28338889. The reversal of 28338859 is 95883382.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28338859 - 2¹ = 28338857 is a prime.

Together with 28338857, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28338853) 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, 14169429 + 14169430.

It is an arithmetic number, because the mean of its divisors is an integer number (14169430).

Almost surely, 2^28338859 is an apocalyptic number.

28338859 is a deficient number, since it is larger than the sum of its proper divisors (1).

28338859 is an equidigital number, since it uses as much as digits as its factorization.

28338859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 46.

The square root of 28338859 is about 5323.4254949234. The cubic root of 28338859 is about 304.8789594061.

The spelling of 28338859 in words is "twenty-eight million, three hundred thirty-eight thousand, eight hundred fifty-nine".