397 (the 78th prime)

 
Next prime401
Previous prime389
Octal(615)8
Hexadecimal(18D)16
Prime gap4
22nd Cousin prime (the small number)The big number is 401 .
37th Prime of the Form 3n+1172 + 3 * 62
37th Prime of the Form 4n+162 + 192
31st Left-truncatable prime