Is 609 a deficient number and what is its deficiency?

Is 609 a deficient number?

Here we will explain and calculate if 609 is a deficient number and its deficiency if applicable.

609 is a deficient number if the sum of its proper divisors is less than 609.

The sum of its proper divisors is calculated as follows: 1 + 3 + 7 + 21 + 29 + 87 + 203 = 351.

351 is less than 609. Therefore, 609 is a deficient number.

The deficiency of 609 is 609 minus the sum of its proper divisors. Thus, the deficiency of 609 is 609 - 351 = 258

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