810,998

2 × 405499

810,998 has digital root 8. The neighboring primes are 810989 and 811037; its proper-divisor sum differs from the starting integer by -405,496.

Prime Factor Structure

Factorization String 2 × 405499

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Total Divisors 4

Divisor Sum (σ) 1,216,500

Proper Divisor Sum 405,502

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #810989 ← → #811037

1 2 405,499 810,998

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

810,998 405,499 1,216,498 608,249 1,824,748 912,374 456,187 1,368,562 684,281 2,052,844 1,026,422 513,211 1,539,634 769,817 2,309,452 1,154,726 577,363 1,732,090 866,045 2,598,136 1,299,068 649,534 324,767 974,302 487,151 1,461,454 730,727 2,192,182 1,096,091 3,288,274 1,644,137 4,932,412 2,466,206 1,233,103 3,699,310 1,849,655 5,548,966 2,774,483 8,323,450 4,161,725 12,485,176 6,242,588 3,121,294 1,560,647 4,681,942 2,340,971 7,022,914 3,511,457 10,534,372 5,267,186 2,633,593 7,900,780 3,950,390 1,975,195 5,925,586 2,962,793 8,888,380 4,444,190 2,222,095 6,666,286