Something like this...

DECLARE @DateAsInt INT = 20170625;

SELECT
    DateAsDate = DATEFROMPARTS(SUBSTRING(dc.DateAsChar, 1, 4), SUBSTRING(dc.DateAsChar, 5, 2), SUBSTRING(dc.DateAsChar, 7, 2))
FROM
    ( VALUES (CAST(@DateAsInt AS CHAR(8))) ) dc (DateAsChar);