679868 has 12 divisors (see below), whose sum is σ = 1359792. Its totient is φ = 291360.

The previous prime is 679867. The next prime is 679879. The reversal of 679868 is 868976.

679868 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12113 + ... + 12168.

It is an arithmetic number, because the mean of its divisors is an integer number (113316).

2⁶⁷⁹⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

679868 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679868 is a wasteful number, since it uses less digits than its factorization.

679868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24292 (or 24290 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 679868 is about 824.5410844828. The cubic root of 679868 is about 87.9309030601.

It can be divided in two parts, 6798 and 68, that multiplied together give a palindrome (462264).

The spelling of 679868 in words is "six hundred seventy-nine thousand, eight hundred sixty-eight".