Il numero romano MLXXXVI nel sistema decimale vale: 1086.
MLXXXVI in latino si scrive mille octoginta sex,
mentre in italiano milleottantasei.
MLXVII, MLXVIII, MLXIX, MLXX, MLXXI, MLXXII, MLXXIII, MLXXIV, MLXXV, MLXXVI, MLXXVII, MLXXVIII, MLXXIX, MLXXX, MLXXXI, MLXXXII, MLXXXIII, MLXXXIV, MLXXXV, MLXXXVII, MLXXXVIII, MLXXXIX, MXC, MXCI, MXCII, MXCIII, MXCIV, MXCV, MXCVI, MXCVII, MXCVIII, MXCIX, MC, MCI, MCII, MCIII, MCIV, MCV