A Spherical ball of radius 1mm and density 10.5 g/cc is dropped in glycerine of coefficient of viscosity 9.8 poise and density 1.5 g/cc. Viscous force on the ball when it attains constant velocity is $3696\times10^{-x}$ N. The value of $x$ is ________.

(Given, g = 9.8 m/s$^2$ and $\pi=\frac{22}{7}$)