679224 has 64 divisors (see below), whose sum is σ = 2096640. Its totient is φ = 178560.

The previous prime is 679223. The next prime is 679229. The reversal of 679224 is 422976.

679224 = T₃₈₄ + T₃₈₅ + ... + T₃₉₂.

It is a happy number.

679224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×679224² = 922690484352, which contains 22 as substring.

Its product of digits (6048) is a multiple of the sum of its prime divisors (336).

It is a junction number, because it is equal to n+sod(n) for n = 679191 and 679200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679223) 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, 2029 + ... + 2339.

It is an arithmetic number, because the mean of its divisors is an integer number (32760).

2⁶⁷⁹²²⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1048320).

679224 is an abundant number, since it is smaller than the sum of its proper divisors (1417416).

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

679224 is a wasteful number, since it uses less digits than its factorization.

679224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 336 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 679224 is about 824.1504716980. The cubic root of 679224 is about 87.9031303204.

It can be divided in two parts, 679 and 224, that added together give a triangular number (903 = T₄₂).

The spelling of 679224 in words is "six hundred seventy-nine thousand, two hundred twenty-four".