28361339 has 2 divisors, whose sum is σ = 28361340. Its totient is φ = 28361338.

The previous prime is 28361327. The next prime is 28361353. The reversal of 28361339 is 93316382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28361339 - 2¹² = 28357243 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28361299 and 28361308.

It is not a weakly prime, because it can be changed into another prime (28361309) 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, 14180669 + 14180670.

It is an arithmetic number, because the mean of its divisors is an integer number (14180670).

Almost surely, 2^28361339 is an apocalyptic number.

28361339 is a deficient number, since it is larger than the sum of its proper divisors (1).

28361339 is an equidigital number, since it uses as much as digits as its factorization.

28361339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 35.

The square root of 28361339 is about 5325.5364987952. The cubic root of 28361339 is about 304.9595538949.

The spelling of 28361339 in words is "twenty-eight million, three hundred sixty-one thousand, three hundred thirty-nine".