Is 777 a deficient number and what is its deficiency?

Is 777 a deficient number?

Here we will explain and calculate if 777 is a deficient number and its deficiency if applicable.

777 is a deficient number if the sum of its proper divisors is less than 777.

The sum of its proper divisors is calculated as follows: 1 + 3 + 7 + 21 + 37 + 111 + 259 = 439.

439 is less than 777. Therefore, 777 is a deficient number.

The deficiency of 777 is 777 minus the sum of its proper divisors. Thus, the deficiency of 777 is 777 - 439 = 338

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