3,457
Use the smallest digits first, making sure you save an odd one for the end.
3457 is the smallest odd number formed.
03458
135,607
3475
101 is the smallest 3 digit odd whole number
103
The smallest odd 7-digit number is 1,000,001 .If you also want the ones digit to be the sum of the thousands and ten-thousands digits,then the smallest odd 7-digit number that satisfies that additional requirement is 1,001,001,but it's no longer the smallest odd 7-digit number.
1000001 is the smallest 7 digit odd number...
The least possible odd number that can be formed from the digits of 83067 is 307. To obtain this, you can rearrange the digits while ensuring that the last digit is odd (1, 3, 5, 7, or 9). Since the smallest odd digit available is 3, placing it at the end gives you 307.
As the number is odd it must end in an odd digit; the odd digits are 1, 3, 5, 7, 9 and the smallest is 1 which is the sum of 1 and 0. Thus the smallest 7-digit number which meets your criteria is 1,001,001
555
111111