8198317 has 2 divisors, whose sum is σ = 8198318. Its totient is φ = 8198316.

The previous prime is 8198303. The next prime is 8198363. The reversal of 8198317 is 7138918.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8185321 + 12996 = 2861^2 + 114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8198317 is a prime.

It is an Ulam number.

8198317 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8198017) 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, 4099158 + 4099159.

It is an arithmetic number, because the mean of its divisors is an integer number (4099159).

Almost surely, 2^8198317 is an apocalyptic number.

It is an amenable number.

8198317 is a deficient number, since it is larger than the sum of its proper divisors (1).

8198317 is an equidigital number, since it uses as much as digits as its factorization.

8198317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 37.

The square root of 8198317 is about 2863.2703330283. The cubic root of 8198317 is about 201.6391705639.

It can be divided in two parts, 8198 and 317, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 8198317 in words is "eight million, one hundred ninety-eight thousand, three hundred seventeen".