No, Four is not divergent. In the books Four initially appears to be Divergent since he resists the mind control serum and can remain aware during simulations, but he is actually genetically damaged and therefore is not Divergent.
Is four a virgin in divergent?
They go back to the dorm, and as Tobias kisses her, she tells him she's afraid he's only pursuing her for sex. He assures her that's not the case and reveals he's a virgin, like her.
How does four know Tris is divergent?
How does Four know that Tris is Divergent? Four realizes that Tris is Divergent because of her ability to manipulate the simulation. ... It is believed that the Dauntless leaders will kill Tris if she is discovered to be Divergent.