Zack's Inc., an all-equity firm, is subject to a 30% corporate tax rate. Its equityholders require a 20% return. The firm's market value now is $3,500,000, and there are 175,000 shares outstanding. Suppose the firm issues $1 million of bonds at 10% and uses the proceeds to repurchase common stock. What is the market value of equity of the firm after the debt issue?