Any coin dealer or buyer of scrap gold & silver.
no NO U.S. coins were ever made of pure silver. All had at least 10% copper in them. NO U.S. half dollar is worth a megabuck. Perhaps you are thinking of the famous 1804 silver dollar, which does sell for over that amount.
You can cash in a 1964 Kennedy half dollar at a bank but they will only give you $0.50 for it. You would be far better off to sell it to a collector or a dealer. 1964 halves are made of 90% silver so they sell for around 10 times face value.
Any business that buys or sells silver and gold.
eBay Most shops that sell jewelery also buy gold and silver.
Take it to a coin dealer.
The coin is only face value, has no silver and is still in circulation.
Simply take it to your local coin shop or sell it online.
Kennedy half dollars from 1965 to 1970 are 40% silver. So many were made even Mint State coins sell for just a little more than the silver value. Typical uncirculated coins are $5.00-$7.00. The value for the silver in the coin is $4.75.
A morgan silver dollar cost minimum 30 dollars but if it has a "S" or a "CC" mintmark it can sell up to 130 dollars.
Half a dollar Depends on the mint mark - if it has an "S" and is in its original packaging it might sell for a couple of dollars.
Are 90% pure and sell only for their silver content regardless of condition. They are all very common even in uncirculated condition. They contain the JFK half dollar, washington quarter and roosevelt dime.