634344111 has 6 divisors (see below), whose sum is σ = 916274840. Its totient is φ = 422896068.

The previous prime is 634344083. The next prime is 634344119. The reversal of 634344111 is 111443436.

It is not a de Polignac number, because 634344111 - 2¹⁵ = 634311343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634344119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35241331 + ... + 35241348.

Almost surely, 2^634344111 is an apocalyptic number.

634344111 is a deficient number, since it is larger than the sum of its proper divisors (281930729).

634344111 is a wasteful number, since it uses less digits than its factorization.

634344111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70482685 (or 70482682 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 634344111 is about 25186.1888939156. The cubic root of 634344111 is about 859.2277685685.

Adding to 634344111 its reverse (111443436), we get a palindrome (745787547).

The spelling of 634344111 in words is "six hundred thirty-four million, three hundred forty-four thousand, one hundred eleven".