unknown app in my phone

[rahulbachheti]

There us an unknown app named 10421 in my phn... i didn't know what application is this actually.. pls can anyone explain what type of app is this.. is it inbuilt or something... does this cause any harm to my privacy and my device.. pls explain and give me some solution..

[Roshanchillim]

just delete it

[rahulbachheti]

unable to find this app...

[krishnakhumar]

take all your backup of your phone storage and then factory reset the phone its only option to safe your data

[ashu16]

backup your phone storage then factory reset ur device

[rahulbachheti]

ok