679860 has 48 divisors (see below), whose sum is σ = 2116800. Its totient is φ = 181152.

The previous prime is 679859. The next prime is 679867. The reversal of 679860 is 68976.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90 + ... + 1169.

It is an arithmetic number, because the mean of its divisors is an integer number (44100).

2⁶⁷⁹⁸⁶⁰ is an apocalyptic number.

679860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1058400).

679860 is an abundant number, since it is smaller than the sum of its proper divisors (1436940).

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

679860 is a wasteful number, since it uses less digits than its factorization.

679860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 679860 is about 824.5362332851. The cubic root of 679860 is about 87.9305581647.

The spelling of 679860 in words is "six hundred seventy-nine thousand, eight hundred sixty".