8199000197 has 2 divisors, whose sum is σ = 8199000198. Its totient is φ = 8199000196.

The previous prime is 8199000157. The next prime is 8199000221. The reversal of 8199000197 is 7910009918.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8143438081 + 55562116 = 90241^2 + 7454^2 .

It is a cyclic number.

It is not a de Polignac number, because 8199000197 - 2²⁰ = 8197951621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8199000107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4099500098 + 4099500099.

It is an arithmetic number, because the mean of its divisors is an integer number (4099500099).

Almost surely, 2^8199000197 is an apocalyptic number.

It is an amenable number.

8199000197 is a deficient number, since it is larger than the sum of its proper divisors (1).

8199000197 is an equidigital number, since it uses as much as digits as its factorization.

8199000197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 44.

The square root of 8199000197 is about 90548.3307245363. The cubic root of 8199000197 is about 2016.4477152846.

The spelling of 8199000197 in words is "eight billion, one hundred ninety-nine million, one hundred ninety-seven", and thus it is an aban number.