What is the difference between permissions 543 and 777 on a file and directory?

Question

linux

Good evening!
What is the difference between permissions 543 and 777 on a file and directory?

Answer 1

mistupid.com/internet/chmod.htm
https://chmod-calculator.com/

Answer 2

"777" - three axes, anyone can get lucky
and
543 - "down", that is, degradation, which in fact is (although 765 is also "down", but there is meaningfulness)