Changing date format from Number to String to Date

For whatever reason (most likely because of the architects), we have a database that outputs Fiscal Year/Period (Month) as a Number.  For example, 2017001, and when converted to a string is looks like 2017/001.  To make things worse is has that extra 0 between the year and the month.  Once extracted and linked to Tableau I have been unable to change this format to a date format.  My desired end result is this:  January 2017. 

To start, I've tried these methods with no success.  I end up with Null values.

1.  DATEPARSE("YYYYMMM",[Fiscal Year/Period])

2.  DATEPARSE('YYYYmmm',[Fiscal Year/Period])

3.  DATE(RIGHT([Fiscal Year/Period],3)+(LEFT([Fiscal Year/Period],4)))

Any help on this would be greatly appreciated.

Thanks,

Ashton