Il numero romano MDCXCVII nel sistema decimale vale: 1697.
MDCXCVII in latino si scrive mille sescenti nonaginta septem,
mentre in italiano milleseicentonovantasette.
MDCLXXVIII, MDCLXXIX, MDCLXXX, MDCLXXXI, MDCLXXXII, MDCLXXXIII, MDCLXXXIV, MDCLXXXV, MDCLXXXVI, MDCLXXXVII, MDCLXXXVIII, MDCLXXXIX, MDCXC, MDCXCI, MDCXCII, MDCXCIII, MDCXCIV, MDCXCV, MDCXCVI, MDCXCVIII, MDCXCIX, MDCC, MDCCI, MDCCII, MDCCIII, MDCCIV, MDCCV, MDCCVI, MDCCVII, MDCCVIII, MDCCIX, MDCCX, MDCCXI, MDCCXII, MDCCXIII, MDCCXIV, MDCCXV, MDCCXVI