Is 679 a deficient number and what is its deficiency?

Is 679 a deficient number?

Here we will explain and calculate if 679 is a deficient number and its deficiency if applicable.

679 is a deficient number if the sum of its proper divisors is less than 679.

The sum of its proper divisors is calculated as follows: 1 + 7 + 97 = 105.

105 is less than 679. Therefore, 679 is a deficient number.

The deficiency of 679 is 679 minus the sum of its proper divisors. Thus, the deficiency of 679 is 679 - 105 = 574

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