What is this other on iTunes iPhone?

I have a 16gb iPhone and there's 1.7GB of other how do you get rid of it?

Other may refer to data or the OS itself. If you are jailbroken, any jailbreak tweaks will show up under other also

That guy is kinda wrong kinda right.\

Its formatting. Like, the settings, all the other data thats less obvious and doesn't even appear in Settings>General>Usage. You can't get rid of it, your device is like a USB it needs to use that data to work, and some of that data is info about you or what you have done on your iPhone(don't worry its not spying on you, that data is used to configure it for you).