878878902 has 48 divisors (see below), whose sum is σ = 1943161920. Its totient is φ = 264799920.

The previous prime is 878878883. The next prime is 878878969. The reversal of 878878902 is 209878878.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 126573 + ... + 133335.

It is an arithmetic number, because the mean of its divisors is an integer number (40482540).

Almost surely, 2^878878902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 878878902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (971580960).

878878902 is an abundant number, since it is smaller than the sum of its proper divisors (1064283018).

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

878878902 is a wasteful number, since it uses less digits than its factorization.

878878902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6969 (or 6958 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 57.

The square root of 878878902 is about 29645.8918233201. The cubic root of 878878902 is about 957.8768552041.

The spelling of 878878902 in words is "eight hundred seventy-eight million, eight hundred seventy-eight thousand, nine hundred two".