you can try to use for example "aida64" from playstore to check that, just open the app and hit CPU, there should be the architechture listed in the 4th row.
The fact that it’s impossible to know without downloading a third-party application is crazy but for security reasons, people should be extra cautious when downloading those kinds of apps. For the time being, if it doesn’t work on your android phone, the best solution is to play the online version of the game, directly from your browser.