7,940,626

2 × 3970313

7,940,626 has digital root 7. The neighboring primes are 7940591 and 7940627; its proper-divisor sum differs from the starting integer by -3,970,310.

Prime Factor Structure

Factorization String 2 × 3970313

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Total Divisors 4

Divisor Sum (σ) 11,910,942

Proper Divisor Sum 3,970,316

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #7940591 ← → #7940627

1 2 3,970,313 7,940,626

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

7,940,626 3,970,313 11,910,940 5,955,470 2,977,735 8,933,206 4,466,603 13,399,810 6,699,905 20,099,716 10,049,858 5,024,929 15,074,788 7,537,394 3,768,697 11,306,092 5,653,046 2,826,523 8,479,570 4,239,785 12,719,356 6,359,678 3,179,839 9,539,518 4,769,759 14,309,278 7,154,639 21,463,918 10,731,959 32,195,878 16,097,939 48,293,818 24,146,909 72,440,728 36,220,364 18,110,182 9,055,091 27,165,274 13,582,637 40,747,912 20,373,956 10,186,978 5,093,489 15,280,468 7,640,234 3,820,117 11,460,352 5,730,176 2,865,088 1,432,544 716,272 358,136 179,068 89,534 44,767 134,302 67,151 201,454 100,727 302,182