629925841 has 2 divisors, whose sum is σ = 629925842. Its totient is φ = 629925840.

The previous prime is 629925827. The next prime is 629925887. The reversal of 629925841 is 148529926.

It is an a-pointer prime, because the next prime (629925887) can be obtained adding 629925841 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 562685841 + 67240000 = 23721^2 + 8200^2 .

It is a cyclic number.

It is not a de Polignac number, because 629925841 - 2⁵ = 629925809 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 629925791 and 629925800.

It is not a weakly prime, because it can be changed into another prime (629925811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314962920 + 314962921.

It is an arithmetic number, because the mean of its divisors is an integer number (314962921).

Almost surely, 2^629925841 is an apocalyptic number.

It is an amenable number.

629925841 is a deficient number, since it is larger than the sum of its proper divisors (1).

629925841 is an equidigital number, since it uses as much as digits as its factorization.

629925841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 46.

The square root of 629925841 is about 25098.3234699053. The cubic root of 629925841 is about 857.2282500414.

The spelling of 629925841 in words is "six hundred twenty-nine million, nine hundred twenty-five thousand, eight hundred forty-one".