Il numero romano MMMDCXCVIII nel sistema decimale vale: 3698.
MMMDCXCVIII in latino si scrive tria milia sescenti nonaginta octo,
mentre in italiano tremilaseicentonovantotto.
MMMDCLXXIX, MMMDCLXXX, MMMDCLXXXI, MMMDCLXXXII, MMMDCLXXXIII, MMMDCLXXXIV, MMMDCLXXXV, MMMDCLXXXVI, MMMDCLXXXVII, MMMDCLXXXVIII, MMMDCLXXXIX, MMMDCXC, MMMDCXCI, MMMDCXCII, MMMDCXCIII, MMMDCXCIV, MMMDCXCV, MMMDCXCVI, MMMDCXCVII, MMMDCXCIX, MMMDCC, MMMDCCI, MMMDCCII, MMMDCCIII, MMMDCCIV, MMMDCCV, MMMDCCVI, MMMDCCVII, MMMDCCVIII, MMMDCCIX, MMMDCCX, MMMDCCXI, MMMDCCXII, MMMDCCXIII, MMMDCCXIV, MMMDCCXV, MMMDCCXVI, MMMDCCXVII