28519529 has 2 divisors, whose sum is σ = 28519530. Its totient is φ = 28519528.

The previous prime is 28519507. The next prime is 28519531. The reversal of 28519529 is 92591582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27667600 + 851929 = 5260^2 + 923^2 .

It is a cyclic number.

It is not a de Polignac number, because 28519529 - 2⁸ = 28519273 is a prime.

Together with 28519531, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28519549) 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, 14259764 + 14259765.

It is an arithmetic number, because the mean of its divisors is an integer number (14259765).

Almost surely, 2^28519529 is an apocalyptic number.

It is an amenable number.

28519529 is a deficient number, since it is larger than the sum of its proper divisors (1).

28519529 is an equidigital number, since it uses as much as digits as its factorization.

28519529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 41.

The square root of 28519529 is about 5340.3678712239. The cubic root of 28519529 is about 305.5254902331.

The spelling of 28519529 in words is "twenty-eight million, five hundred nineteen thousand, five hundred twenty-nine".