Il numero romano MMDXCVII nel sistema decimale vale: 2597.
MMDXCVII in latino si scrive duo milia quingenti nonaginta septem,
mentre in italiano duemilacinquecentonovantasette.
MMDLXXVIII, MMDLXXIX, MMDLXXX, MMDLXXXI, MMDLXXXII, MMDLXXXIII, MMDLXXXIV, MMDLXXXV, MMDLXXXVI, MMDLXXXVII, MMDLXXXVIII, MMDLXXXIX, MMDXC, MMDXCI, MMDXCII, MMDXCIII, MMDXCIV, MMDXCV, MMDXCVI, MMDXCVIII, MMDXCIX, MMDC, MMDCI, MMDCII, MMDCIII, MMDCIV, MMDCV, MMDCVI, MMDCVII, MMDCVIII, MMDCIX, MMDCX, MMDCXI, MMDCXII, MMDCXIII, MMDCXIV, MMDCXV, MMDCXVI