878787880 has 32 divisors (see below), whose sum is σ = 1978790400. Its totient is φ = 351245376.

The previous prime is 878787853. The next prime is 878787911. The reversal of 878787880 is 88787878.

It is an unprimeable 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, 49201 + ... + 64639.

It is an arithmetic number, because the mean of its divisors is an integer number (61837200).

Almost surely, 2^878787880 is an apocalyptic number.

It is an amenable number.

878787880 is an abundant number, since it is smaller than the sum of its proper divisors (1100002520).

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

878787880 is a wasteful number, since it uses less digits than its factorization.

878787880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16873 (or 16869 counting only the distinct ones).

The product of its (nonzero) digits is 11239424, while the sum is 61.

The square root of 878787880 is about 29644.3566298883. The cubic root of 878787880 is about 957.8437862277.

The spelling of 878787880 in words is "eight hundred seventy-eight million, seven hundred eighty-seven thousand, eight hundred eighty".