629946157 has 2 divisors, whose sum is σ = 629946158. Its totient is φ = 629946156.

The previous prime is 629946131. The next prime is 629946167. The reversal of 629946157 is 751649926.

It is a happy number.

629946157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 567678276 + 62267881 = 23826^2 + 7891^2 .

It is a cyclic number.

It is not a de Polignac number, because 629946157 - 2²³ = 621557549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 629946157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (629946167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314973078 + 314973079.

It is an arithmetic number, because the mean of its divisors is an integer number (314973079).

Almost surely, 2^629946157 is an apocalyptic number.

It is an amenable number.

629946157 is a deficient number, since it is larger than the sum of its proper divisors (1).

629946157 is an equidigital number, since it uses as much as digits as its factorization.

629946157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 49.

The square root of 629946157 is about 25098.7281948708. The cubic root of 629946157 is about 857.2374655505.

The spelling of 629946157 in words is "six hundred twenty-nine million, nine hundred forty-six thousand, one hundred fifty-seven".