| Factorisation | 2^5 × 19 × 23 |
| Prime | no |
| Binary | 11011010100000 |
| Hexadecimal | 0x36A0 |
| Bit length | 14 |
| Digit sum | 25 |
| Digits spoken | one three nine eight four |
13984 sits inside the sequence 2139847, beginning at digit 2 of seven.
13984 falls below the cardinality of a PubMed record, a Canadian patent application, a European patent application. Those systems assign identifiers sequentially, so it necessarily holds one in each. This is a property of the registries, not of the number. The cardinalities are published here.