634039 has 8 divisors (see below), whose sum is σ = 738720. Its totient is φ = 532896.

The previous prime is 634031. The next prime is 634061. The reversal of 634039 is 930436.

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

It is not a de Polignac number, because 634039 - 2³ = 634031 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 (634031) 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, 484 + ... + 1225.

It is an arithmetic number, because the mean of its divisors is an integer number (92340).

2⁶³⁴⁰³⁹ is an apocalyptic number.

634039 is a deficient number, since it is larger than the sum of its proper divisors (104681).

634039 is a wasteful number, since it uses less digits than its factorization.

634039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 634039 is about 796.2656591867. The cubic root of 634039 is about 85.9089987469.

The spelling of 634039 in words is "six hundred thirty-four thousand, thirty-nine".