Converting between Arabic and Roman Numbers we get that : roman numeral value for 787 is DCCLXXXVII here, DCC=700 , LXXX=80 and VII=7.
DCCLXXXVII
(viii)dcclxxxvii
Nothing - XVXIX is not a valid Roman numeral.
787 = DCCLXXXVII in Roman numerals.
1963.
45
29
14
46.
19
That is not proper form for a Roman Numeral.