28828259 has 2 divisors, whose sum is σ = 28828260. Its totient is φ = 28828258.

The previous prime is 28828231. The next prime is 28828273. The reversal of 28828259 is 95282882.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28828259 - 2⁸ = 28828003 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (28828279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14414129 + 14414130.

It is an arithmetic number, because the mean of its divisors is an integer number (14414130).

Almost surely, 2^28828259 is an apocalyptic number.

28828259 is a deficient number, since it is larger than the sum of its proper divisors (1).

28828259 is an equidigital number, since it uses as much as digits as its factorization.

28828259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 184320, while the sum is 44.

The square root of 28828259 is about 5369.1953773354. The cubic root of 28828259 is about 306.6239954543.

The spelling of 28828259 in words is "twenty-eight million, eight hundred twenty-eight thousand, two hundred fifty-nine".