4649

4649 is a number that has acquired a specific meaning in Japanese popular culture. Through goroawase, a form of wordplay that assigns syllables to digits, 4649 is read as yoroshiku, a standard greeting or closing meaning “please treat me well,” “best regards,” or “thanks in advance.” The association rests on approximations: 4 can be yo, 6 can be ro, 4 can be shi, and 9 can be ku, yielding yoroshiku.

It is commonly used in written communication, including emails, messages, business cards, and event signage, to convey goodwill without writing the full phrase. In online forums and social media, 4649 serves as a short, playful way to introduce oneself, request cooperation, or close a conversation. It also appears in merchandise, slogans, and fan expressions, especially among Japanese speakers and learners familiar with goroawase.

As a form of numeral slang, 4649 is part of Japan's broader tradition of number-based wordplay. It is informal in tone and typically seen in casual contexts rather than formal correspondence. The term has also spread to international audiences through anime, manga, and language communities, where it is recognized as a representation of yoroshiku rather than a literal numeric value.