634523707 has 2 divisors, whose sum is σ = 634523708. Its totient is φ = 634523706.

The previous prime is 634523689. The next prime is 634523711. The reversal of 634523707 is 707325436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 634523707 - 2¹⁵ = 634490939 is a prime.

It is not a weakly prime, because it can be changed into another prime (634523737) 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, 317261853 + 317261854.

It is an arithmetic number, because the mean of its divisors is an integer number (317261854).

Almost surely, 2^634523707 is an apocalyptic number.

634523707 is a deficient number, since it is larger than the sum of its proper divisors (1).

634523707 is an equidigital number, since it uses as much as digits as its factorization.

634523707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 37.

The square root of 634523707 is about 25189.7540083265. The cubic root of 634523707 is about 859.3088493293.

The spelling of 634523707 in words is "six hundred thirty-four million, five hundred twenty-three thousand, seven hundred seven".