Electrophotographic photoreceptor, and process cartridge and image forming apparatus including the same

An electrophotographic photoreceptor at least comprising, on a conductive support:

• a laminated photosensitive layer in which a charge generating layer that contains a charge generating material and a charge transporting layer that contains a hole transporting material are laminated in this order;
• or
• the laminated photosensitive layer and a surface protecting layer laminated on the laminated photosensitive layer, wherein
• the charge transporting layer or the surface protecting layer that serves as an outermost surface layer of the electrophotographic photoreceptor contains an electron transporting material that has a maximum absorption at a wavelength of equal to or less than 500 nm in a spectral absorption spectrum and a silica particle, and a mass ratio of the silica particle to the electron transporting material is 1.0 to 5.0, and
• an impedance change rate of the electrophotographic photoreceptor in a case where a frequency is changed from 4 Hz to 50 Hz is −96% to −91%.