634036433 has 2 divisors, whose sum is σ = 634036434. Its totient is φ = 634036432.

The previous prime is 634036409. The next prime is 634036511. The reversal of 634036433 is 334630436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 540469504 + 93566929 = 23248^2 + 9673^2 .

It is a cyclic number.

It is not a de Polignac number, because 634036433 - 2²⁰ = 632987857 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 634036433.

It is not a weakly prime, because it can be changed into another prime (634035433) 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, 317018216 + 317018217.

It is an arithmetic number, because the mean of its divisors is an integer number (317018217).

Almost surely, 2^634036433 is an apocalyptic number.

It is an amenable number.

634036433 is a deficient number, since it is larger than the sum of its proper divisors (1).

634036433 is an equidigital number, since it uses as much as digits as its factorization.

634036433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 32.

The square root of 634036433 is about 25180.0800832722. The cubic root of 634036433 is about 859.0888280837.

Adding to 634036433 its reverse (334630436), we get a palindrome (968666869).

The spelling of 634036433 in words is "six hundred thirty-four million, thirty-six thousand, four hundred thirty-three".