Il numero romano MCCXCVII nel sistema decimale vale: 1297.
MCCXCVII in latino si scrive mille ducenti nonaginta septem,
mentre in italiano milleduecentonovantasette.
MCCLXXVIII, MCCLXXIX, MCCLXXX, MCCLXXXI, MCCLXXXII, MCCLXXXIII, MCCLXXXIV, MCCLXXXV, MCCLXXXVI, MCCLXXXVII, MCCLXXXVIII, MCCLXXXIX, MCCXC, MCCXCI, MCCXCII, MCCXCIII, MCCXCIV, MCCXCV, MCCXCVI, MCCXCVIII, MCCXCIX, MCCC, MCCCI, MCCCII, MCCCIII, MCCCIV, MCCCV, MCCCVI, MCCCVII, MCCCVIII, MCCCIX, MCCCX, MCCCXI, MCCCXII, MCCCXIII, MCCCXIV, MCCCXV, MCCCXVI