8612816197 has 2 divisors, whose sum is σ = 8612816198. Its totient is φ = 8612816196.

The previous prime is 8612816011. The next prime is 8612816213. The reversal of 8612816197 is 7916182168.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8606087361 + 6728836 = 92769^2 + 2594^2 .

It is a cyclic number.

It is not a de Polignac number, because 8612816197 - 2¹¹ = 8612814149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8612816197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8612816497) 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, 4306408098 + 4306408099.

It is an arithmetic number, because the mean of its divisors is an integer number (4306408099).

Almost surely, 2^8612816197 is an apocalyptic number.

It is an amenable number.

8612816197 is a deficient number, since it is larger than the sum of its proper divisors (1).

8612816197 is an equidigital number, since it uses as much as digits as its factorization.

8612816197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 49.

The square root of 8612816197 is about 92805.2595330674. The cubic root of 8612816197 is about 2049.8168543106.

The spelling of 8612816197 in words is "eight billion, six hundred twelve million, eight hundred sixteen thousand, one hundred ninety-seven".