634958 has 8 divisors (see below), whose sum is σ = 968760. Its totient is φ = 312040.

The previous prime is 634943. The next prime is 634969. The reversal of 634958 is 859436.

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

It is a plaindrome in base 9.

It is a zygodrome in base 9.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 634958.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2573 + ... + 2808.

It is an arithmetic number, because the mean of its divisors is an integer number (121095).

2⁶³⁴⁹⁵⁸ is an apocalyptic number.

634958 is a deficient number, since it is larger than the sum of its proper divisors (333802).

634958 is a wasteful number, since it uses less digits than its factorization.

634958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5442.

The product of its digits is 25920, while the sum is 35.

The square root of 634958 is about 796.8425189459. The cubic root of 634958 is about 85.9504852885.

The spelling of 634958 in words is "six hundred thirty-four thousand, nine hundred fifty-eight".