An electronic apparatus includes: a housing 100 formed of a conductive material; and a digital processing circuit 102 which is disposed in the housing 100 and which radiates an electromagnetic wave. The housing 100 includes a ventilation part 101 through which air is ventilated into and out of the housing 100. The ventilation part 101 is divided into a plurality of holes by a conductive member. When a maximum length in one of the vertical direction and the horizontal direction of one of the plurality of holes that has the largest opening area is R m, and when the frequency of the electromagnetic wave radiated from the digital processing circuit 102 is A Hz, a relationship expressed as 3.0×108/A×½>R is satisfied.