634443 has 8 divisors (see below), whose sum is σ = 857808. Its totient is φ = 417024.

The previous prime is 634441. The next prime is 634471. The reversal of 634443 is 344436.

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

It is not a de Polignac number, because 634443 - 2¹ = 634441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (634441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1230 + ... + 1667.

It is an arithmetic number, because the mean of its divisors is an integer number (107226).

2⁶³⁴⁴⁴³ is an apocalyptic number.

634443 is a deficient number, since it is larger than the sum of its proper divisors (223365).

634443 is a wasteful number, since it uses less digits than its factorization.

634443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973.

The product of its digits is 3456, while the sum is 24.

The square root of 634443 is about 796.5193029676. The cubic root of 634443 is about 85.9272415083.

Adding to 634443 its reverse (344436), we get a palindrome (978879).

The spelling of 634443 in words is "six hundred thirty-four thousand, four hundred forty-three".