634006 has 4 divisors (see below), whose sum is σ = 951012. Its totient is φ = 317002.

The previous prime is 634003. The next prime is 634013. The reversal of 634006 is 600436.

It is a happy number.

634006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a congruent 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 as a sum of consecutive naturals, namely, 158500 + ... + 158503.

It is an arithmetic number, because the mean of its divisors is an integer number (237753).

2⁶³⁴⁰⁰⁶ is an apocalyptic number.

634006 is a deficient number, since it is larger than the sum of its proper divisors (317006).

634006 is a wasteful number, since it uses less digits than its factorization.

634006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317005.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 634006 is about 796.2449371896. The cubic root of 634006 is about 85.9075082781.

The spelling of 634006 in words is "six hundred thirty-four thousand, six".