679872 has 28 divisors (see below), whose sum is σ = 1799336. Its totient is φ = 226560.

The previous prime is 679867. The next prime is 679879. The reversal of 679872 is 278976.

679872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 679872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679879) by changing a digit.

679872 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1579 + ... + 1962.

It is an arithmetic number, because the mean of its divisors is an integer number (64262).

2⁶⁷⁹⁸⁷² is an apocalyptic number.

It is an amenable number.

679872 is an abundant number, since it is smaller than the sum of its proper divisors (1119464).

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

679872 is a wasteful number, since it uses less digits than its factorization.

679872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3556 (or 3546 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The square root of 679872 is about 824.5435100709. The cubic root of 679872 is about 87.9310755067.

It can be divided in two parts, 679 and 872, that added together give a palindrome (1551).

The spelling of 679872 in words is "six hundred seventy-nine thousand, eight hundred seventy-two".