| Next prime | 71 |
| Previous prime | 61 |
| Octal | (103)8 |
| Hexadecimal | (43)16 |
| Prime gap | 4 |
| 8th Prime triplet (the smallest number) | The others are 71 and 73 . |
| 7th Cousin prime (the small number) | The big number is 71 . |
| 13th Sexy prime (the small number) | The big number is 73 . |
| 8th Prime of the Form 3n+1 | 82 + 3 * 12 |
| 10th Prime of the Form 4n+3 | |
| 12th Left-truncatable prime |