629439 has 4 divisors (see below), whose sum is σ = 839256. Its totient is φ = 419624.

The previous prime is 629429. The next prime is 629449. The reversal of 629439 is 934926.

629439 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (629429) and next prime (629449).

It is a cyclic number.

It is not a de Polignac number, because 629439 - 2⁷ = 629311 is a prime.

It is a D-number.

629439 is strictly pandigital in base 7.

It is a plaindrome in base 14 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104904 + ... + 104909.

It is an arithmetic number, because the mean of its divisors is an integer number (209814).

2⁶²⁹⁴³⁹ is an apocalyptic number.

629439 is a deficient number, since it is larger than the sum of its proper divisors (209817).

629439 is a wasteful number, since it uses less digits than its factorization.

629439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209816.

The product of its digits is 11664, while the sum is 33.

The square root of 629439 is about 793.3719178292. The cubic root of 629439 is about 85.7007355564.

The spelling of 629439 in words is "six hundred twenty-nine thousand, four hundred thirty-nine".