878715936 has 144 divisors (see below), whose sum is σ = 2925756288. Its totient is φ = 244915200.

The previous prime is 878715931. The next prime is 878715947. The reversal of 878715936 is 639517878.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878715931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77341 + ... + 87971.

It is an arithmetic number, because the mean of its divisors is an integer number (20317752).

Almost surely, 2^878715936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 878715936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1462878144).

878715936 is an abundant number, since it is smaller than the sum of its proper divisors (2047040352).

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

878715936 is a wasteful number, since it uses less digits than its factorization.

878715936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10695 (or 10684 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The square root of 878715936 is about 29643.1431531813. The cubic root of 878715936 is about 957.8176468162.

The spelling of 878715936 in words is "eight hundred seventy-eight million, seven hundred fifteen thousand, nine hundred thirty-six".