Is 747 a deficient number and what is its deficiency?

Is 747 a deficient number?

Here we will explain and calculate if 747 is a deficient number and its deficiency if applicable.

747 is a deficient number if the sum of its proper divisors is less than 747.

The sum of its proper divisors is calculated as follows: 1 + 3 + 9 + 83 + 249 = 345.

345 is less than 747. Therefore, 747 is a deficient number.

The deficiency of 747 is 747 minus the sum of its proper divisors. Thus, the deficiency of 747 is 747 - 345 = 402

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