85001317 has 2 divisors, whose sum is σ = 85001318. Its totient is φ = 85001316.

The previous prime is 85001251. The next prime is 85001339. The reversal of 85001317 is 71310058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81739681 + 3261636 = 9041^2 + 1806^2 .

It is a cyclic number.

It is not a de Polignac number, because 85001317 - 2¹⁵ = 84968549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85001291 and 85001300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85001387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42500658 + 42500659.

It is an arithmetic number, because the mean of its divisors is an integer number (42500659).

Almost surely, 2^85001317 is an apocalyptic number.

It is an amenable number.

85001317 is a deficient number, since it is larger than the sum of its proper divisors (1).

85001317 is an equidigital number, since it uses as much as digits as its factorization.

85001317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 85001317 is about 9219.6158813695. The cubic root of 85001317 is about 439.6852380373.

The spelling of 85001317 in words is "eighty-five million, one thousand, three hundred seventeen".