Order 1728.
554 conjugacy classes of subgroups.
The subgroup lattice has 274 nodes — too large to display as a diagram.
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 13. C4×C9×Dic3 | C4 | semidirect |
| 35. #4977 | C9 | direct (N × H) |
| 121. C4×Dic3 | C4×C9 | semidirect |
| 151. C3×C9 | #382 | semidirect |
| 229. C9 | #4977 | direct (N × H) |
| 266. C3 | C9×#382 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×C3×C9×C4⋊C4 | 2 |
| C2×C9×C4⋊Dic3 | 2 |
| C2×C4×C9×Dic3 | 2 |
| C9×C3⋊#95 | 2 |
| C3×#4977 | 3 |
| C9×#382 | 3 |