Il numero romano MMDCXCVII nel sistema decimale vale: 2697.
MMDCXCVII in latino si scrive duo milia sescenti nonaginta septem,
mentre in italiano duemilaseicentonovantasette.
MMDCLXXVIII, MMDCLXXIX, MMDCLXXX, MMDCLXXXI, MMDCLXXXII, MMDCLXXXIII, MMDCLXXXIV, MMDCLXXXV, MMDCLXXXVI, MMDCLXXXVII, MMDCLXXXVIII, MMDCLXXXIX, MMDCXC, MMDCXCI, MMDCXCII, MMDCXCIII, MMDCXCIV, MMDCXCV, MMDCXCVI, MMDCXCVIII, MMDCXCIX, MMDCC, MMDCCI, MMDCCII, MMDCCIII, MMDCCIV, MMDCCV, MMDCCVI, MMDCCVII, MMDCCVIII, MMDCCIX, MMDCCX, MMDCCXI, MMDCCXII, MMDCCXIII, MMDCCXIV, MMDCCXV, MMDCCXVI