634326673 has 2 divisors, whose sum is σ = 634326674. Its totient is φ = 634326672.

The previous prime is 634326653. The next prime is 634326677. The reversal of 634326673 is 376623436.

634326673 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., 610238209 + 24088464 = 24703^2 + 4908^2 .

It is a cyclic number.

It is not a de Polignac number, because 634326673 - 2²⁵ = 600772241 is a prime.

It is not a weakly prime, because it can be changed into another prime (634326677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317163336 + 317163337.

It is an arithmetic number, because the mean of its divisors is an integer number (317163337).

Almost surely, 2^634326673 is an apocalyptic number.

It is an amenable number.

634326673 is a deficient number, since it is larger than the sum of its proper divisors (1).

634326673 is an equidigital number, since it uses as much as digits as its factorization.

634326673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 40.

The square root of 634326673 is about 25185.8427097447. The cubic root of 634326673 is about 859.2198951599.

The spelling of 634326673 in words is "six hundred thirty-four million, three hundred twenty-six thousand, six hundred seventy-three".