85310717 has 2 divisors, whose sum is σ = 85310718. Its totient is φ = 85310716.

The previous prime is 85310713. The next prime is 85310747. The reversal of 85310717 is 71701358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64416676 + 20894041 = 8026^2 + 4571^2 .

It is a cyclic number.

It is not a de Polignac number, because 85310717 - 2² = 85310713 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85310711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42655358 + 42655359.

It is an arithmetic number, because the mean of its divisors is an integer number (42655359).

Almost surely, 2^85310717 is an apocalyptic number.

It is an amenable number.

85310717 is a deficient number, since it is larger than the sum of its proper divisors (1).

85310717 is an equidigital number, since it uses as much as digits as its factorization.

85310717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 85310717 is about 9236.3800809625. The cubic root of 85310717 is about 440.2180685580.

The spelling of 85310717 in words is "eighty-five million, three hundred ten thousand, seven hundred seventeen".