8354697217 has 2 divisors, whose sum is σ = 8354697218. Its totient is φ = 8354697216.

The previous prime is 8354697137. The next prime is 8354697227. The reversal of 8354697217 is 7127964538.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6227735056 + 2126962161 = 78916^2 + 46119^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8354697217 is a prime.

It is not a weakly prime, because it can be changed into another prime (8354697227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4177348608 + 4177348609.

It is an arithmetic number, because the mean of its divisors is an integer number (4177348609).

Almost surely, 2^8354697217 is an apocalyptic number.

It is an amenable number.

8354697217 is a deficient number, since it is larger than the sum of its proper divisors (1).

8354697217 is an equidigital number, since it uses as much as digits as its factorization.

8354697217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 52.

The square root of 8354697217 is about 91404.0328267851. The cubic root of 8354697217 is about 2029.1317128351.

The spelling of 8354697217 in words is "eight billion, three hundred fifty-four million, six hundred ninety-seven thousand, two hundred seventeen".