Il numero romano CDLXXXVII nel sistema decimale vale: 487.
CDLXXXVII in latino si scrive quadringenti octoginta septem,
mentre in italiano quattrocentottantasette.
CDLXVIII, CDLXIX, CDLXX, CDLXXI, CDLXXII, CDLXXIII, CDLXXIV, CDLXXV, CDLXXVI, CDLXXVII, CDLXXVIII, CDLXXIX, CDLXXX, CDLXXXI, CDLXXXII, CDLXXXIII, CDLXXXIV, CDLXXXV, CDLXXXVI, CDLXXXVIII, CDLXXXIX, CDXC, CDXCI, CDXCII, CDXCIII, CDXCIV, CDXCV, CDXCVI, CDXCVII, CDXCVIII, CDXCIX, D, DI, DII, DIII, DIV, DV, DVI