8247085317 has 24 divisors (see below), whose sum is σ = 11976564600. Its totient is φ = 5468519808.

The previous prime is 8247085303. The next prime is 8247085361. The reversal of 8247085317 is 7135807428.

It can be written as a sum of positive squares in 4 ways, for example, as 4309397316 + 3937688001 = 65646^2 + 62751^2 .

It is not a de Polignac number, because 8247085317 - 2¹⁴ = 8247068933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8247085397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3570559 + ... + 3572867.

It is an arithmetic number, because the mean of its divisors is an integer number (499023525).

Almost surely, 2^8247085317 is an apocalyptic number.

It is an amenable number.

8247085317 is a deficient number, since it is larger than the sum of its proper divisors (3729479283).

8247085317 is a wasteful number, since it uses less digits than its factorization.

8247085317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4277 (or 4274 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 8247085317 is about 90813.4644036885. The cubic root of 8247085317 is about 2020.3820240282.

The spelling of 8247085317 in words is "eight billion, two hundred forty-seven million, eighty-five thousand, three hundred seventeen".