How to allow any numbers in the page address?

Question

htaccess

Greetings, tell me how to make it possible to enter numbers in the page address, for example:
site.com/ 77127372132173
And just display the index page.
Through htaccess or something else.

Answer 1

RewriteRule ^[0-9]{1,}$ https://site.ru/? [L,R=301]

[0-9] - numbers
{1,} - how many times, from 1 to infinity
Also note that if the numbers are in GET then this will not work