CREATE TABLE table_name_29 (overs INTEGER, economy_rate VARCHAR(255), team VARCHAR(255), best_bowling VARCHAR(255))
What is the lowest overs of the Chennai Super Kings when the Economy Rate is less than 5.92 with a Best Bowling number of 2/17?
    
SQL: SELECT MIN(overs) FROM table_name_29 WHERE team = "chennai super kings" AND best_bowling = "2/17" AND economy_rate < 5.92