879220 has 12 divisors (see below), whose sum is σ = 1846404. Its totient is φ = 351680.

The previous prime is 879199. The next prime is 879227. The reversal of 879220 is 22978.

It can be written as a sum of positive squares in 2 ways, for example, as 535824 + 343396 = 732^2 + 586^2 .

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879227) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 21961 + ... + 22000.

It is an arithmetic number, because the mean of its divisors is an integer number (153867).

2⁸⁷⁹²²⁰ is an apocalyptic number.

It is an amenable number.

879220 is an abundant number, since it is smaller than the sum of its proper divisors (967184).

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

879220 is a wasteful number, since it uses less digits than its factorization.

879220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43970 (or 43968 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 879220 is about 937.6673184024. The cubic root of 879220 is about 95.8000758364.

The spelling of 879220 in words is "eight hundred seventy-nine thousand, two hundred twenty".