Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_35791 ( "Week" real, "Date" text, "Opponent" text, "Result" text, "Record" text, "Game Site" text, "Attendance" real )

### Question ###
What is the lowest week number that there was a game on October 23, 1977 with less than 68,977 people attending?

### Accurate SQL ###

SELECT MIN("Week") FROM table_35791 WHERE "Attendance" < '68,977' AND "Date" = 'october 23, 1977'