879720 has 32 divisors (see below), whose sum is σ = 2639520. Its totient is φ = 234560.

The previous prime is 879713. The next prime is 879721. The reversal of 879720 is 27978.

879720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (879721) by changing a digit.

879720 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 7 ways as a sum of consecutive naturals, for example, 3546 + ... + 3785.

It is an arithmetic number, because the mean of its divisors is an integer number (82485).

2⁸⁷⁹⁷²⁰ is an apocalyptic number.

It is an amenable number.

879720 is an abundant number, since it is smaller than the sum of its proper divisors (1759800).

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

879720 is a wasteful number, since it uses less digits than its factorization.

879720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7345 (or 7341 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 879720 is about 937.9338995899. The cubic root of 879720 is about 95.8182324452.

The spelling of 879720 in words is "eight hundred seventy-nine thousand, seven hundred twenty".