No. All prime numbers are deficient.
11 is deficient.
Yes
60 is abundant.
If a number is not abundant it cannot be made abundant!
abundant
67 is an abundant number.
72 is an abundant number.
abundant
No, 29 is not an abundant number.
350 is an abundant number.
945 is the first odd abundant number.
No, 73 is not an abundant number.