28789030073 has 2 divisors, whose sum is σ = 28789030074. Its totient is φ = 28789030072.

The previous prime is 28789030063. The next prime is 28789030079. The reversal of 28789030073 is 37003098782.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21080716864 + 7708313209 = 145192^2 + 87797^2 .

It is a cyclic number.

It is not a de Polignac number, because 28789030073 - 2⁸ = 28789029817 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (28789030079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14394515036 + 14394515037.

It is an arithmetic number, because the mean of its divisors is an integer number (14394515037).

Almost surely, 2^28789030073 is an apocalyptic number.

It is an amenable number.

28789030073 is a deficient number, since it is larger than the sum of its proper divisors (1).

28789030073 is an equidigital number, since it uses as much as digits as its factorization.

28789030073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 28789030073 in words is "twenty-eight billion, seven hundred eighty-nine million, thirty thousand, seventy-three".