629772629 has 2 divisors, whose sum is σ = 629772630. Its totient is φ = 629772628.

The previous prime is 629772623. The next prime is 629772643. The reversal of 629772629 is 926277926.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 323172529 + 306600100 = 17977^2 + 17510^2 .

It is a cyclic number.

It is not a de Polignac number, because 629772629 - 2¹² = 629768533 is a prime.

It is a super-2 number, since 2×629772629² = 793227128475143282, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (629772623) 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, 314886314 + 314886315.

It is an arithmetic number, because the mean of its divisors is an integer number (314886315).

Almost surely, 2^629772629 is an apocalyptic number.

It is an amenable number.

629772629 is a deficient number, since it is larger than the sum of its proper divisors (1).

629772629 is an equidigital number, since it uses as much as digits as its factorization.

629772629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 50.

The square root of 629772629 is about 25095.2710485462. The cubic root of 629772629 is about 857.1587454026.

The spelling of 629772629 in words is "six hundred twenty-nine million, seven hundred seventy-two thousand, six hundred twenty-nine".