679580 has 24 divisors (see below), whose sum is σ = 1557360. Its totient is φ = 247040.

The previous prime is 679561. The next prime is 679597. The reversal of 679580 is 85976.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 679580.

It is a congruent number.

It is an unprimeable number.

679580 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1325 + ... + 1764.

It is an arithmetic number, because the mean of its divisors is an integer number (64890).

2⁶⁷⁹⁵⁸⁰ is an apocalyptic number.

It is an amenable number.

679580 is an abundant number, since it is smaller than the sum of its proper divisors (877780).

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

679580 is a wasteful number, since it uses less digits than its factorization.

679580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109 (or 3107 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 679580 is about 824.3664233822. The cubic root of 679580 is about 87.9184851217.

The spelling of 679580 in words is "six hundred seventy-nine thousand, five hundred eighty".