28330573 has 2 divisors, whose sum is σ = 28330574. Its totient is φ = 28330572.

The previous prime is 28330537. The next prime is 28330583. The reversal of 28330573 is 37503382.

Together with previous prime (28330537) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28323684 + 6889 = 5322^2 + 83^2 .

It is a cyclic number.

It is not a de Polignac number, because 28330573 - 2²¹ = 26233421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28330583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14165286 + 14165287.

It is an arithmetic number, because the mean of its divisors is an integer number (14165287).

Almost surely, 2^28330573 is an apocalyptic number.

It is an amenable number.

28330573 is a deficient number, since it is larger than the sum of its proper divisors (1).

28330573 is an equidigital number, since it uses as much as digits as its factorization.

28330573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 28330573 is about 5322.6471797405. The cubic root of 28330573 is about 304.8492419863.

The spelling of 28330573 in words is "twenty-eight million, three hundred thirty thousand, five hundred seventy-three".