629734691 has 2 divisors, whose sum is σ = 629734692. Its totient is φ = 629734690.

The previous prime is 629734669. The next prime is 629734751. The reversal of 629734691 is 196437926.

It is a happy number.

629734691 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 is a cyclic number.

It is not a de Polignac number, because 629734691 - 2⁶ = 629734627 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (629734661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314867345 + 314867346.

It is an arithmetic number, because the mean of its divisors is an integer number (314867346).

Almost surely, 2^629734691 is an apocalyptic number.

629734691 is a deficient number, since it is larger than the sum of its proper divisors (1).

629734691 is an equidigital number, since it uses as much as digits as its factorization.

629734691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 47.

The square root of 629734691 is about 25094.5151576993. The cubic root of 629734691 is about 857.1415330839.

The spelling of 629734691 in words is "six hundred twenty-nine million, seven hundred thirty-four thousand, six hundred ninety-one".