634934 has 8 divisors (see below), whose sum is σ = 958608. Its totient is φ = 315400.

The previous prime is 634927. The next prime is 634937. The reversal of 634934 is 439436.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 634897 and 634906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 617 + ... + 1284.

It is an arithmetic number, because the mean of its divisors is an integer number (119826).

2⁶³⁴⁹³⁴ is an apocalyptic number.

634934 is a deficient number, since it is larger than the sum of its proper divisors (323674).

634934 is a wasteful number, since it uses less digits than its factorization.

634934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2070.

The product of its digits is 7776, while the sum is 29.

The square root of 634934 is about 796.8274593662. The cubic root of 634934 is about 85.9494023625.

The spelling of 634934 in words is "six hundred thirty-four thousand, nine hundred thirty-four".