654,412

2² × 11 × 107 × 139

654,412 has digital root 4. The neighboring primes are 654397 and 654413; its proper-divisor sum differs from the starting integer by -38,744.

Prime Factor Structure

Factorization String 2^2 × 11 × 107 × 139

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 24

Divisor Sum (σ) 1,270,080

Proper Divisor Sum 615,668

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #654397 ← → #654413

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

654,412 327,206 163,603 490,810 245,405 736,216 368,108 184,054 92,027 276,082 138,041 414,124 207,062 103,531 310,594 155,297 465,892 232,946 116,473 349,420 174,710 87,355 262,066 131,033 393,100 196,550 98,275 294,826 147,413 442,240 221,120 110,560 55,280 27,640 13,820 6,910 3,455 10,366 5,183 15,550 7,775 23,326 11,663 34,990 17,495 52,486 26,243 78,730 39,365 118,096 59,048 29,524 14,762 7,381 22,144 11,072 5,536 2,768 1,384 692