28085303 has 2 divisors, whose sum is σ = 28085304. Its totient is φ = 28085302.

The previous prime is 28085269. The next prime is 28085333. The reversal of 28085303 is 30358082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28085303 - 2²⁰ = 27036727 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28085333) 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, 14042651 + 14042652.

It is an arithmetic number, because the mean of its divisors is an integer number (14042652).

Almost surely, 2^28085303 is an apocalyptic number.

28085303 is a deficient number, since it is larger than the sum of its proper divisors (1).

28085303 is an equidigital number, since it uses as much as digits as its factorization.

28085303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 28085303 is about 5299.5568682674. The cubic root of 28085303 is about 303.9669537890.

The spelling of 28085303 in words is "twenty-eight million, eighty-five thousand, three hundred three".