878345920 has 56 divisors (see below), whose sum is σ = 2105003664. Its totient is φ = 349080576.

The previous prime is 878345891. The next prime is 878345957. The reversal of 878345920 is 29543878.

878345920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41499 + ... + 58981.

Almost surely, 2^878345920 is an apocalyptic number.

878345920 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 878345920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1052501832).

878345920 is an abundant number, since it is smaller than the sum of its proper divisors (1226657744).

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

878345920 is a wasteful number, since it uses less digits than its factorization.

878345920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17657 (or 17647 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 878345920 is about 29636.9013225067. The cubic root of 878345920 is about 957.6831863696.

The spelling of 878345920 in words is "eight hundred seventy-eight million, three hundred forty-five thousand, nine hundred twenty".