879666 has 16 divisors (see below), whose sum is σ = 1769088. Its totient is φ = 291600.

The previous prime is 879661. The next prime is 879667. The reversal of 879666 is 666978.

It is a happy number.

879666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1356 + ... + 1896.

It is an arithmetic number, because the mean of its divisors is an integer number (110568).

2⁸⁷⁹⁶⁶⁶ is an apocalyptic number.

879666 is an abundant number, since it is smaller than the sum of its proper divisors (889422).

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

879666 is a wasteful number, since it uses less digits than its factorization.

879666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817.

The product of its digits is 108864, while the sum is 42.

The square root of 879666 is about 937.9051124714. The cubic root of 879666 is about 95.8162718629.

The spelling of 879666 in words is "eight hundred seventy-nine thousand, six hundred sixty-six".