85800317 has 2 divisors, whose sum is σ = 85800318. Its totient is φ = 85800316.

The previous prime is 85800307. The next prime is 85800329. The reversal of 85800317 is 71300858.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69039481 + 16760836 = 8309^2 + 4094^2 .

It is a cyclic number.

It is not a de Polignac number, because 85800317 - 2⁴ = 85800301 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 (85800307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42900158 + 42900159.

It is an arithmetic number, because the mean of its divisors is an integer number (42900159).

Almost surely, 2^85800317 is an apocalyptic number.

It is an amenable number.

85800317 is a deficient number, since it is larger than the sum of its proper divisors (1).

85800317 is an equidigital number, since it uses as much as digits as its factorization.

85800317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 85800317 is about 9262.8460529148. The cubic root of 85800317 is about 441.0586029076.

The spelling of 85800317 in words is "eighty-five million, eight hundred thousand, three hundred seventeen".