According to The Hollywood Reporter, the movie centres on a woman (Faris) searching for the right man and exploring the idea of sexual quotas.
The script, by Jennifer Crittenden and Gabrielle Allan, is based on a book by Karyn Bosnak.
If cast, Bomer will play Faris's dream man.
Actress Ari Graynor is further in negotiations to join the film's cast.
Future Captain America Chris Evans is also attached to Number, which is said to be seeking high-profile cameos.