878969520 has 240 divisors, whose sum is σ = 3468340512. Its totient is φ = 196669440.

The previous prime is 878969519. The next prime is 878969549. The reversal of 878969520 is 25969878.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 98692 + ... + 107228.

Almost surely, 2^878969520 is an apocalyptic number.

878969520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 878969520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1734170256).

878969520 is an abundant number, since it is smaller than the sum of its proper divisors (2589370992).

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

878969520 is a wasteful number, since it uses less digits than its factorization.

878969520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8580 (or 8571 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The square root of 878969520 is about 29647.4201238489. The cubic root of 878969520 is about 957.9097751364.

The spelling of 878969520 in words is "eight hundred seventy-eight million, nine hundred sixty-nine thousand, five hundred twenty".