3⁴ × 7²

Prime Factor Structure

Factorization String 3^4 × 7^2

Distinct Prime Factors 2

Square Status Yes (√3969 = 63)

Abundance Measure Deficient

Analytical Properties

Total Divisors 15

Divisor Sum (σ) 6,897

Proper Divisor Sum 2,928

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #3967 ← → #3989

1 3 7 9 21 27 49 63 81 147 189 441 567 1,323 3,969

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

3,969 11,908 5,954 2,977 8,932 4,466 2,233 6,700 3,350 1,675 5,026 2,513 7,540 3,770 1,885 5,656 2,828 1,414 707 2,122 1,061 3,184 1,592 796 398 199 598 299 898 449 1,348 674 337 1,012 506 253 760 380 190 95 286 143 430 215 646 323 970 485 1,456 728 364 182 91 274 137 412 206 103 310 155

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