Order 1728.
294 conjugacy classes of subgroups.
The subgroup lattice has 214 nodes — too large to display as a diagram.
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 34. #4878 | C9 | direct (N × H) |
| 129. C3×C9 | #499 | semidirect |
| 183. C9 | #4878 | direct (N × H) |
| 208. C3 | C9×#499 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C9×#890 | 2 |
| C3×C9×#107 | 2 |
| C9×#818 | 2 |
| C8×C9×Dic3 | 2 |
| C9×#808 | 2 |
| C3×#4878 | 3 |
| C9×#499 | 3 |