879866 has 16 divisors (see below), whose sum is σ = 1456224. Its totient is φ = 396144.

The previous prime is 879863. The next prime is 879881. The reversal of 879866 is 668978.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725 + ... + 1511.

It is an arithmetic number, because the mean of its divisors is an integer number (91014).

2⁸⁷⁹⁸⁶⁶ is an apocalyptic number.

879866 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

879866 is a deficient number, since it is larger than the sum of its proper divisors (576358).

879866 is a wasteful number, since it uses less digits than its factorization.

879866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845.

The product of its digits is 145152, while the sum is 44.

The square root of 879866 is about 938.0117270056. The cubic root of 879866 is about 95.8235328772.

The spelling of 879866 in words is "eight hundred seventy-nine thousand, eight hundred sixty-six".