634940707 has 2 divisors, whose sum is σ = 634940708. Its totient is φ = 634940706.

The previous prime is 634940699. The next prime is 634940711. The reversal of 634940707 is 707049436.

634940707 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 is a cyclic number.

It is not a de Polignac number, because 634940707 - 2³ = 634940699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 634940707.

It is not a weakly prime, because it can be changed into another prime (634940407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317470353 + 317470354.

It is an arithmetic number, because the mean of its divisors is an integer number (317470354).

Almost surely, 2^634940707 is an apocalyptic number.

634940707 is a deficient number, since it is larger than the sum of its proper divisors (1).

634940707 is an equidigital number, since it uses as much as digits as its factorization.

634940707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 634940707 is about 25198.0298237779. The cubic root of 634940707 is about 859.4970499791.

The spelling of 634940707 in words is "six hundred thirty-four million, nine hundred forty thousand, seven hundred seven".