I5-7600K cores labeled oddly

[jt935777]

So, I have a I5-7600K, and while looking through some stuff for my PC I noticed my PC's cores had odd numbering, instead of being 0,1,2,3 it goes 0,2,4,6. What does this mean? Is it possible that the I5 has hyper threading just not enabled?

 

[Lutfij]

What app are you using?
HWMonitor shows up with this:

 

[jt935777]

What app are you using?
HWMonitor shows up with this:

I'm using HWmonitor too, mine shows up as this https://gyazo.com/64dcb5cceeac30edb25549a238027ed0

 

[Signature818]

It this stable? 5.1 Mhz running at 1.360v?