878556 has 24 divisors (see below), whose sum is σ = 2343040. Its totient is φ = 250992.

The previous prime is 878551. The next prime is 878567. The reversal of 878556 is 655878.

It is a happy number.

It is a zygodrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 878556.

It is not an unprimeable number, because it can be changed into a prime (878551) by changing a digit.

878556 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 5146 + ... + 5313.

2⁸⁷⁸⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

878556 is an abundant number, since it is smaller than the sum of its proper divisors (1464484).

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

878556 is a wasteful number, since it uses less digits than its factorization.

878556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10473 (or 10471 counting only the distinct ones).

The product of its digits is 67200, while the sum is 39.

The square root of 878556 is about 937.3131813860. The cubic root of 878556 is about 95.7759532162.

The spelling of 878556 in words is "eight hundred seventy-eight thousand, five hundred fifty-six".