Il numero romano MMDCCXCIX nel sistema decimale vale: 2799.
MMDCCXCIX in latino si scrive duo milia septingenti nonaginta novem,
mentre in italiano duemilasettecentonovantanove.
MMDCCLXXX, MMDCCLXXXI, MMDCCLXXXII, MMDCCLXXXIII, MMDCCLXXXIV, MMDCCLXXXV, MMDCCLXXXVI, MMDCCLXXXVII, MMDCCLXXXVIII, MMDCCLXXXIX, MMDCCXC, MMDCCXCI, MMDCCXCII, MMDCCXCIII, MMDCCXCIV, MMDCCXCV, MMDCCXCVI, MMDCCXCVII, MMDCCXCVIII, MMDCCC, MMDCCCI, MMDCCCII, MMDCCCIII, MMDCCCIV, MMDCCCV, MMDCCCVI, MMDCCCVII, MMDCCCVIII, MMDCCCIX, MMDCCCX, MMDCCCXI, MMDCCCXII, MMDCCCXIII, MMDCCCXIV, MMDCCCXV, MMDCCCXVI, MMDCCCXVII, MMDCCCXVIII