Suzumiya Haruhi Series: Atezuppo Numbers
涼宮ハルヒシリーズ あてずっぽナンバーズ
Random Numbers is a short story featuring the SOS Brigade.
Itsuki Koizumi and Kyon were walking together to a shrine on January 3rd, when Koizumi muttered the number 775,249. Koizumi said that the number had... just popped into his head...
(Source: Haruhi Wikia)