987654
987654
987653
9876543
987654
98765
9876543.
999,999. It is an odd number. It is so easy :). If you asked the question wrongly, the greatest odd number can be something else but I don't know
94205 if digits are not to be repeated and 99999 if digits can be repeated
987,653
99 is a two digit odd number
It is 97
999 is the greatest 3 digit number and it is odd because it ends with a 9.