What episode number had US viewership of 4.87 million?
CREATE TABLE table_30087 (
    "\u2116" real,
    "#" real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "Production code" text,
    "U.S. viewers (million)" text
)
SELECT "\u2116" FROM table_30087 WHERE "U.S. viewers (million)" = '4.87'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What episode number had US viewership of 4.87 million? ### Input: CREATE TABLE table_30087 (
    "\u2116" real,
    "#" real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "Production code" text,
    "U.S. viewers (million)" text
) ### Response: SELECT "\u2116" FROM table_30087 WHERE "U.S. viewers (million)" = '4.87'