I miss 9564, the ISO standard for the encoding of PINs.
What about 47 (from Star Trek)?
No true Geek follower of Spiked Math would take 0047.
1729 is also the number that allowed Richard Feynman to outperform an abacus--they got to cube roots, and he knew 12^3 = 1728, so he was able to figure the residue very quickly.
According to http://mathworld.wolfram.com/MuenchhausenNumber.html 438579088 is also a Munchausen Number.
That is only if you consider 0^0=0.
When I first heard of the 1729 thing, I was like: "This mathematician is a sociopath. OH WAIT..."