679958 has 8 divisors (see below), whose sum is σ = 1028352. Its totient is φ = 337176.

The previous prime is 679957. The next prime is 679961. The reversal of 679958 is 859976.

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

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 679958.

It is not an unprimeable number, because it can be changed into a prime (679951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1085 + ... + 1592.

It is an arithmetic number, because the mean of its divisors is an integer number (128544).

2⁶⁷⁹⁹⁵⁸ is an apocalyptic number.

679958 is a deficient number, since it is larger than the sum of its proper divisors (348394).

679958 is a wasteful number, since it uses less digits than its factorization.

679958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2806.

The product of its digits is 136080, while the sum is 44.

The square root of 679958 is about 824.5956584897. The cubic root of 679958 is about 87.9347829466.

The spelling of 679958 in words is "six hundred seventy-nine thousand, nine hundred fifty-eight".