9169798213 has 2 divisors, whose sum is σ = 9169798214. Its totient is φ = 9169798212.

The previous prime is 9169798163. The next prime is 9169798219. The reversal of 9169798213 is 3128979619.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5250161764 + 3919636449 = 72458^2 + 62607^2 .

It is an emirp because it is prime and its reverse (3128979619) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9169798213 - 2⁹ = 9169797701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9169798219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4584899106 + 4584899107.

It is an arithmetic number, because the mean of its divisors is an integer number (4584899107).

Almost surely, 2^9169798213 is an apocalyptic number.

It is an amenable number.

9169798213 is a deficient number, since it is larger than the sum of its proper divisors (1).

9169798213 is an equidigital number, since it uses as much as digits as its factorization.

9169798213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 55.

The square root of 9169798213 is about 95759.0633465052. The cubic root of 9169798213 is about 2093.0836871450.

The spelling of 9169798213 in words is "nine billion, one hundred sixty-nine million, seven hundred ninety-eight thousand, two hundred thirteen".