Is the mass of proton is the mass of an electron?

Proton: 1,007 276 466 77(10) atomic mass units (u) Electron: 5,485 799 094 3(23).10-4 atomic mass units (u) Mass ratio proton/electron: 1 836

No, go look up their masses.

Dunno, but the ratio of the mass of a proton to the mass of what prople think of as being an electron is approx 1980. I'd check that if I were you though. Probably OK to +- 5%.

absolute mass ofelectron(rest mass)=9.1093897x 10-31 kg (negligible compared to proton) absolute mass of proton(rest mass)=1.6726485x 10-27 kg( about 1847 times the mass of electron)

The mass of an electron is approximately 1/2000 times smaller than a proton