634793573 has 2 divisors, whose sum is σ = 634793574. Its totient is φ = 634793572.

The previous prime is 634793539. The next prime is 634793587. The reversal of 634793573 is 375397436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 348270244 + 286523329 = 18662^2 + 16927^2 .

It is a cyclic number.

It is not a de Polignac number, because 634793573 - 2¹⁴ = 634777189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634793513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317396786 + 317396787.

It is an arithmetic number, because the mean of its divisors is an integer number (317396787).

Almost surely, 2^634793573 is an apocalyptic number.

It is an amenable number.

634793573 is a deficient number, since it is larger than the sum of its proper divisors (1).

634793573 is an equidigital number, since it uses as much as digits as its factorization.

634793573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 47.

The square root of 634793573 is about 25195.1101009700. The cubic root of 634793573 is about 859.4306547987.

The spelling of 634793573 in words is "six hundred thirty-four million, seven hundred ninety-three thousand, five hundred seventy-three".