The capital of Armenia is Yerevan, which has seven letters. It is also known as Erivan, which has six letters. Yerevan is the largest city in Armenia and is located on the Hrazdan River. It is the cultural, industrial, and commercial center of the country. Yerevan was founded in 782 BC and is one of the oldest continuously inhabited cities in the world. It is home to many historical sites, including the Matenadaran Library, the Katoghike Tsiranavor Church, and the Republic Square.