634438241 has 2 divisors, whose sum is σ = 634438242. Its totient is φ = 634438240.

The previous prime is 634438237. The next prime is 634438261. The reversal of 634438241 is 142834436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 606390625 + 28047616 = 24625^2 + 5296^2 .

It is a cyclic number.

It is not a de Polignac number, because 634438241 - 2² = 634438237 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (634438261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317219120 + 317219121.

It is an arithmetic number, because the mean of its divisors is an integer number (317219121).

Almost surely, 2^634438241 is an apocalyptic number.

It is an amenable number.

634438241 is a deficient number, since it is larger than the sum of its proper divisors (1).

634438241 is an equidigital number, since it uses as much as digits as its factorization.

634438241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 35.

The square root of 634438241 is about 25188.0575074776. The cubic root of 634438241 is about 859.2702665903.

The spelling of 634438241 in words is "six hundred thirty-four million, four hundred thirty-eight thousand, two hundred forty-one".