CREATE TABLE table_1891 ("No. in series" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Production code" CLOB, "U.S. viewers  ( million ) " CLOB)

Name the total number for number in series that got 3.62 viewers
SELECT COUNT("No. in series") FROM table_1891 WHERE "U.S. viewers (million)" = '3.62'
SELECT COUNT("No. in series") FROM "table_1891" WHERE "U.S. viewers (million)" = '3.62'