629929 has 2 divisors, whose sum is σ = 629930. Its totient is φ = 629928.

The previous prime is 629927. The next prime is 629939. The reversal of 629929 is 929926.

629929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 597529 + 32400 = 773^2 + 180^2 .

It is a cyclic number.

It is not a de Polignac number, because 629929 - 2¹ = 629927 is a prime.

Together with 629927, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (629921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314964 + 314965.

It is an arithmetic number, because the mean of its divisors is an integer number (314965).

2⁶²⁹⁹²⁹ is an apocalyptic number.

It is an amenable number.

629929 is a deficient number, since it is larger than the sum of its proper divisors (1).

629929 is an equidigital number, since it uses as much as digits as its factorization.

629929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 37.

The square root of 629929 is about 793.6806662632. The cubic root of 629929 is about 85.7229683003.

It can be divided in two parts, 62992 and 9, that added together give a square (63001 = 251²).

The spelling of 629929 in words is "six hundred twenty-nine thousand, nine hundred twenty-nine".