It is hard to tell what the "actual" fee rate used is... as you haven't specified the data size of the transaction. If your transaction is only 226 bytes, that would make the fee rate 1782 / 226 = ~7.9 sats/byte... if your transaction is 1782 bytes, your fee rate is 1 sat/bye
Either way, it is pretty low...
as for increasing the fee, you can do that if you enabled RBF (Replace-By-Fee) in your wallet... this requires a setting in the bitcoin.conf file (or commandline option):
If you have used that, and you are using v0.15+ you should be able to right click on the transaction and select "bump fee".
If you haven't used Opt-In RBF, then you're stuck until the transaction is either confirmed or it drops from the mempool (could take a few days, would need your wallet to be offline to prevent rebroadcasting).
Maybe consider using a transaction accelerator? There are "free" and "paid" options...