878166 has 12 divisors (see below), whose sum is σ = 1902732. Its totient is φ = 292716.

The previous prime is 878159. The next prime is 878167. The reversal of 878166 is 661878.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 878166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878167) 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 5 ways as a sum of consecutive naturals, for example, 24376 + ... + 24411.

It is an arithmetic number, because the mean of its divisors is an integer number (158561).

2⁸⁷⁸¹⁶⁶ is an apocalyptic number.

878166 is an abundant number, since it is smaller than the sum of its proper divisors (1024566).

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

878166 is a wasteful number, since it uses less digits than its factorization.

878166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48795 (or 48792 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 878166 is about 937.1051168359. The cubic root of 878166 is about 95.7617791434.

The spelling of 878166 in words is "eight hundred seventy-eight thousand, one hundred sixty-six".