Is 1917 a deficient number and what is its deficiency?

Is 1917 a deficient number?

Here we will explain and calculate if 1917 is a deficient number and its deficiency if applicable.

1917 is a deficient number if the sum of its proper divisors is less than 1917.

The sum of its proper divisors is calculated as follows: 1 + 3 + 9 + 27 + 71 + 213 + 639 = 963.

963 is less than 1917. Therefore, 1917 is a deficient number.

The deficiency of 1917 is 1917 minus the sum of its proper divisors. Thus, the deficiency of 1917 is 1917 - 963 = 954

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