If statement trouble in Python

I am interfacing a RFID sensor (MFRC522) with a Raspberry Pi. I am currently testing the whole system out. Basically, once the RFID tag is swiped it outputs a number associated with it. I want the python code to read in the RFID number and compare it with the variable 'a.' When I attempt to do this, though, I am getting an invalid syntax error for the 'if' statement and I am not sure why. I am new to Python.

import RPi.GPIO as GPIO

from mfrc522 import SimpleMFRC522

GPIO.setwarings(False)

a = 699562167785

reader = SimpleMFRC522()

try:
    id = reader.read()
    print (id)

if id == a
    print ("Awesome")

finally:
    GPIO.cleanup()