It is a plaindrome in base 14.
It is a self number, because there is not a number n which added to its sum of digits gives 629856.
It is a congruent number.
629856 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
629856 is a Friedman number, since it can be written as (6^8*6)/(9+5+2), using all its digits and the basic arithmetic operations.
2629856 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 629856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (930006).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
629856 is an frugal number, since it uses more digits than its factorization.
629856 is an evil number, because the sum of its binary digits is even.
The square root of 629856 is about 793.6346766617. The cubic root of 629856 is about 85.7196568063.
The spelling of 629856 in words is "six hundred twenty-nine thousand, eight hundred fifty-six".