634313543 has 8 divisors (see below), whose sum is σ = 646622160. Its totient is φ = 622056960.

The previous prime is 634313539. The next prime is 634313569. The reversal of 634313543 is 345313436.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 634313543 - 2² = 634313539 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 (634313443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12071 + ... + 37607.

It is an arithmetic number, because the mean of its divisors is an integer number (80827770).

Almost surely, 2^634313543 is an apocalyptic number.

634313543 is a deficient number, since it is larger than the sum of its proper divisors (12308617).

634313543 is a wasteful number, since it uses less digits than its factorization.

634313543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26017.

The product of its digits is 38880, while the sum is 32.

The square root of 634313543 is about 25185.5820460834. The cubic root of 634313543 is about 859.2139667555.

Adding to 634313543 its reverse (345313436), we get a palindrome (979626979).

The spelling of 634313543 in words is "six hundred thirty-four million, three hundred thirteen thousand, five hundred forty-three".