8005317197 has 4 divisors (see below), whose sum is σ = 8005757340. Its totient is φ = 8004877056.

The previous prime is 8005317169. The next prime is 8005317239. The reversal of 8005317197 is 7917135008.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2996358121 + 5008959076 = 54739^2 + 70774^2 .

It is a cyclic number.

It is not a de Polignac number, because 8005317197 - 2⁸ = 8005316941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8005317097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191558 + ... + 229575.

It is an arithmetic number, because the mean of its divisors is an integer number (2001439335).

Almost surely, 2^8005317197 is an apocalyptic number.

It is an amenable number.

8005317197 is a deficient number, since it is larger than the sum of its proper divisors (440143).

8005317197 is a wasteful number, since it uses less digits than its factorization.

8005317197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440142.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 8005317197 is about 89472.4381974695. The cubic root of 8005317197 is about 2000.4430016175.

The spelling of 8005317197 in words is "eight billion, five million, three hundred seventeen thousand, one hundred ninety-seven".