629959 has 4 divisors (see below), whose sum is σ = 687240. Its totient is φ = 572680.

The previous prime is 629939. The next prime is 629963. The reversal of 629959 is 959926.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 629959 - 2⁵ = 629927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28624 + ... + 28645.

It is an arithmetic number, because the mean of its divisors is an integer number (171810).

2⁶²⁹⁹⁵⁹ is an apocalyptic number.

629959 is a deficient number, since it is larger than the sum of its proper divisors (57281).

629959 is a wasteful number, since it uses less digits than its factorization.

629959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57280.

The product of its digits is 43740, while the sum is 40.

The square root of 629959 is about 793.6995653268. The cubic root of 629959 is about 85.7243291141.

The spelling of 629959 in words is "six hundred twenty-nine thousand, nine hundred fifty-nine".