4021 (the 556th prime)

 
Next prime4027
Previous prime4019
Octal(7665)8
Hexadecimal(FB5)16
Prime gap6
206th Sexy prime (the small number)The big number is 4027 .
273rd Prime of the Form 3n+1612 + 3 * 102
272nd Prime of the Form 4n+1392 + 502