The smallest number that someone can get using the 91764 digits is 14679. The secret is to arrange the digits from the least number to their greatest number.
There is no 3 in 91764
The smallest even number using this combination of digits is 2568.
The smallest value Roman numeral using each symbol only once would be MCDXLIV = 1444
1111
19
1368
1023456789
01489
4579 is the smallest even number he can make
Largest: 76542 Smallest: 24567
102345
0.0000001