634334443 has 2 divisors, whose sum is σ = 634334444. Its totient is φ = 634334442.

The previous prime is 634334387. The next prime is 634334453. The reversal of 634334443 is 344433436.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634334443 is a prime.

It is a super-2 number, since 2×634334443² = 804760371152240498, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 634334399 and 634334408.

It is not a weakly prime, because it can be changed into another prime (634334453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317167221 + 317167222.

It is an arithmetic number, because the mean of its divisors is an integer number (317167222).

Almost surely, 2^634334443 is an apocalyptic number.

634334443 is a deficient number, since it is larger than the sum of its proper divisors (1).

634334443 is an equidigital number, since it uses as much as digits as its factorization.

634334443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 34.

The square root of 634334443 is about 25185.9969625981. The cubic root of 634334443 is about 859.2234034003.

Adding to 634334443 its reverse (344433436), we get a palindrome (978767879).

It can be divided in two parts, 63433 and 4443, that added together give a palindrome (67876).

The spelling of 634334443 in words is "six hundred thirty-four million, three hundred thirty-four thousand, four hundred forty-three".