What is The the hottest part of the suns surface layers?

The hottest part of the sun's surface layers is the photosphere, which has temperatures around 5,500 degrees Celsius (about 9,932 degrees Fahrenheit). However, the sun's outer atmosphere, known as the corona, is even hotter, reaching temperatures of 1 to 3 million degrees Celsius (1.8 to 5.4 million degrees Fahrenheit). The reason for this temperature discrepancy remains a topic of research, but it may involve complex magnetic and wave interactions.