634606457 has 2 divisors, whose sum is σ = 634606458. Its totient is φ = 634606456.

The previous prime is 634606417. The next prime is 634606493. The reversal of 634606457 is 754606436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 616082041 + 18524416 = 24821^2 + 4304^2 .

It is a cyclic number.

It is not a de Polignac number, because 634606457 - 2⁸ = 634606201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (634606417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317303228 + 317303229.

It is an arithmetic number, because the mean of its divisors is an integer number (317303229).

Almost surely, 2^634606457 is an apocalyptic number.

It is an amenable number.

634606457 is a deficient number, since it is larger than the sum of its proper divisors (1).

634606457 is an equidigital number, since it uses as much as digits as its factorization.

634606457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 41.

The square root of 634606457 is about 25191.3964876900. The cubic root of 634606457 is about 859.3462026573.

The spelling of 634606457 in words is "six hundred thirty-four million, six hundred six thousand, four hundred fifty-seven".