634016443 has 2 divisors, whose sum is σ = 634016444. Its totient is φ = 634016442.

The previous prime is 634016441. The next prime is 634016483. The reversal of 634016443 is 344610436.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 634016443 - 2¹ = 634016441 is a prime.

Together with 634016441, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (634016441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317008221 + 317008222.

It is an arithmetic number, because the mean of its divisors is an integer number (317008222).

Almost surely, 2^634016443 is an apocalyptic number.

634016443 is a deficient number, since it is larger than the sum of its proper divisors (1).

634016443 is an equidigital number, since it uses as much as digits as its factorization.

634016443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 634016443 is about 25179.6831393884. The cubic root of 634016443 is about 859.0797994931.

Adding to 634016443 its reverse (344610436), we get a palindrome (978626879).

The spelling of 634016443 in words is "six hundred thirty-four million, sixteen thousand, four hundred forty-three".