Il numero romano MDCCCXCVII nel sistema decimale vale: 1897.
MDCCCXCVII in latino si scrive mille octingenti nonaginta septem,
mentre in italiano milleottocentonovantasette.
MDCCCLXXVIII, MDCCCLXXIX, MDCCCLXXX, MDCCCLXXXI, MDCCCLXXXII, MDCCCLXXXIII, MDCCCLXXXIV, MDCCCLXXXV, MDCCCLXXXVI, MDCCCLXXXVII, MDCCCLXXXVIII, MDCCCLXXXIX, MDCCCXC, MDCCCXCI, MDCCCXCII, MDCCCXCIII, MDCCCXCIV, MDCCCXCV, MDCCCXCVI, MDCCCXCVIII, MDCCCXCIX, MCM, MCMI, MCMII, MCMIII, MCMIV, MCMV, MCMVI, MCMVII, MCMVIII, MCMIX, MCMX, MCMXI, MCMXII, MCMXIII, MCMXIV, MCMXV, MCMXVI