8194217 has 2 divisors, whose sum is σ = 8194218. Its totient is φ = 8194216.

The previous prime is 8194213. The next prime is 8194229. The reversal of 8194217 is 7124918.

8194217 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8042896 + 151321 = 2836^2 + 389^2 .

It is a cyclic number.

It is not a de Polignac number, because 8194217 - 2² = 8194213 is a prime.

It is not a weakly prime, because it can be changed into another prime (8194213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4097108 + 4097109.

It is an arithmetic number, because the mean of its divisors is an integer number (4097109).

Almost surely, 2^8194217 is an apocalyptic number.

It is an amenable number.

8194217 is a deficient number, since it is larger than the sum of its proper divisors (1).

8194217 is an equidigital number, since it uses as much as digits as its factorization.

8194217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 32.

The square root of 8194217 is about 2862.5542789614. The cubic root of 8194217 is about 201.6055515315.

The spelling of 8194217 in words is "eight million, one hundred ninety-four thousand, two hundred seventeen".