629855 has 8 divisors (see below), whose sum is σ = 788832. Its totient is φ = 481888.

The previous prime is 629843. The next prime is 629857. The reversal of 629855 is 558926.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 629855 - 2¹⁴ = 613471 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9 and base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2624 + ... + 2853.

It is an arithmetic number, because the mean of its divisors is an integer number (98604).

629855 is a Friedman number, since it can be written as 6^9/(8*2)-5/5, using all its digits and the basic arithmetic operations.

2⁶²⁹⁸⁵⁵ is an apocalyptic number.

629855 is a deficient number, since it is larger than the sum of its proper divisors (158977).

629855 is a wasteful number, since it uses less digits than its factorization.

629855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505.

The product of its digits is 21600, while the sum is 35.

The square root of 629855 is about 793.6340466487. The cubic root of 629855 is about 85.7196114416.

The spelling of 629855 in words is "six hundred twenty-nine thousand, eight hundred fifty-five".