86357317 has 2 divisors, whose sum is σ = 86357318. Its totient is φ = 86357316.

The previous prime is 86357281. The next prime is 86357329. The reversal of 86357317 is 71375368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85636516 + 720801 = 9254^2 + 849^2 .

It is a cyclic number.

It is not a de Polignac number, because 86357317 - 2¹⁵ = 86324549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86357317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86357347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43178658 + 43178659.

It is an arithmetic number, because the mean of its divisors is an integer number (43178659).

Almost surely, 2^86357317 is an apocalyptic number.

It is an amenable number.

86357317 is a deficient number, since it is larger than the sum of its proper divisors (1).

86357317 is an equidigital number, since it uses as much as digits as its factorization.

86357317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 86357317 is about 9292.8637674293. The cubic root of 86357317 is about 442.0109689954.

The spelling of 86357317 in words is "eighty-six million, three hundred fifty-seven thousand, three hundred seventeen".