Il numero romano CDLXXXIV nel sistema decimale vale: 484.
CDLXXXIV in latino si scrive quadringenti octoginta quattuor,
mentre in italiano quattrocentottantaquattro.
CDLXV, CDLXVI, CDLXVII, CDLXVIII, CDLXIX, CDLXX, CDLXXI, CDLXXII, CDLXXIII, CDLXXIV, CDLXXV, CDLXXVI, CDLXXVII, CDLXXVIII, CDLXXIX, CDLXXX, CDLXXXI, CDLXXXII, CDLXXXIII, CDLXXXV, CDLXXXVI, CDLXXXVII, CDLXXXVIII, CDLXXXIX, CDXC, CDXCI, CDXCII, CDXCIII, CDXCIV, CDXCV, CDXCVI, CDXCVII, CDXCVIII, CDXCIX, D, DI, DII, DIII