Il numero romano MMDCCXCVII nel sistema decimale vale: 2797.
MMDCCXCVII in latino si scrive duo milia septingenti nonaginta septem,
mentre in italiano duemilasettecentonovantasette.
MMDCCLXXVIII, MMDCCLXXIX, MMDCCLXXX, MMDCCLXXXI, MMDCCLXXXII, MMDCCLXXXIII, MMDCCLXXXIV, MMDCCLXXXV, MMDCCLXXXVI, MMDCCLXXXVII, MMDCCLXXXVIII, MMDCCLXXXIX, MMDCCXC, MMDCCXCI, MMDCCXCII, MMDCCXCIII, MMDCCXCIV, MMDCCXCV, MMDCCXCVI, MMDCCXCVIII, MMDCCXCIX, MMDCCC, MMDCCCI, MMDCCCII, MMDCCCIII, MMDCCCIV, MMDCCCV, MMDCCCVI, MMDCCCVII, MMDCCCVIII, MMDCCCIX, MMDCCCX, MMDCCCXI, MMDCCCXII, MMDCCCXIII, MMDCCCXIV, MMDCCCXV, MMDCCCXVI