629739 has 12 divisors (see below), whose sum is σ = 992472. Its totient is φ = 381600.

The previous prime is 629737. The next prime is 629743. The reversal of 629739 is 937926.

It is not a de Polignac number, because 629739 - 2¹ = 629737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (629737) 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 11 ways as a sum of consecutive naturals, for example, 3082 + ... + 3279.

It is an arithmetic number, because the mean of its divisors is an integer number (82706).

2⁶²⁹⁷³⁹ is an apocalyptic number.

629739 is a deficient number, since it is larger than the sum of its proper divisors (362733).

629739 is a wasteful number, since it uses less digits than its factorization.

629739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6378 (or 6375 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 629739 is about 793.5609617414. The cubic root of 629739 is about 85.7143488095.

It can be divided in two parts, 6297 and 39, that added together give a palindrome (6336).

The spelling of 629739 in words is "six hundred twenty-nine thousand, seven hundred thirty-nine".