28485593 has 2 divisors, whose sum is σ = 28485594. Its totient is φ = 28485592.

The previous prime is 28485581. The next prime is 28485601. The reversal of 28485593 is 39558482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25482304 + 3003289 = 5048^2 + 1733^2 .

It is a cyclic number.

It is not a de Polignac number, because 28485593 - 2¹⁰ = 28484569 is a prime.

It is a super-2 number, since 2×28485593² = 1622858017123298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28485533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14242796 + 14242797.

It is an arithmetic number, because the mean of its divisors is an integer number (14242797).

Almost surely, 2^28485593 is an apocalyptic number.

It is an amenable number.

28485593 is a deficient number, since it is larger than the sum of its proper divisors (1).

28485593 is an equidigital number, since it uses as much as digits as its factorization.

28485593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 44.

The square root of 28485593 is about 5337.1896162681. The cubic root of 28485593 is about 305.4042583543.

The spelling of 28485593 in words is "twenty-eight million, four hundred eighty-five thousand, five hundred ninety-three".