634043 has 8 divisors (see below), whose sum is σ = 663936. Its totient is φ = 604800.

The previous prime is 634031. The next prime is 634061. The reversal of 634043 is 340436.

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 a de Polignac number, because none of the positive numbers 2^k-634043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634003) 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, 3413 + ... + 3593.

It is an arithmetic number, because the mean of its divisors is an integer number (82992).

2⁶³⁴⁰⁴³ is an apocalyptic number.

634043 is a deficient number, since it is larger than the sum of its proper divisors (29893).

634043 is a wasteful number, since it uses less digits than its factorization.

634043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 634043 is about 796.2681709073. The cubic root of 634043 is about 85.9091794063.

Adding to 634043 its reverse (340436), we get a palindrome (974479).

The spelling of 634043 in words is "six hundred thirty-four thousand, forty-three".