629623 has 2 divisors, whose sum is σ = 629624. Its totient is φ = 629622.

The previous prime is 629617. The next prime is 629653. The reversal of 629623 is 326926.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 629623 - 2⁵ = 629591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 629591 and 629600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (629653) 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 as a sum of consecutive naturals, namely, 314811 + 314812.

It is an arithmetic number, because the mean of its divisors is an integer number (314812).

2⁶²⁹⁶²³ is an apocalyptic number.

629623 is a deficient number, since it is larger than the sum of its proper divisors (1).

629623 is an equidigital number, since it uses as much as digits as its factorization.

629623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 28.

The square root of 629623 is about 793.4878701026. The cubic root of 629623 is about 85.7090855311.

The spelling of 629623 in words is "six hundred twenty-nine thousand, six hundred twenty-three".