878348720 has 80 divisors (see below), whose sum is σ = 2157049440. Its totient is φ = 331702272.

The previous prime is 878348717. The next prime is 878348747. The reversal of 878348720 is 27843878.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 535742 + ... + 537378.

It is an arithmetic number, because the mean of its divisors is an integer number (26963118).

Almost surely, 2^878348720 is an apocalyptic number.

878348720 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 878348720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1078524720).

878348720 is an abundant number, since it is smaller than the sum of its proper divisors (1278700720).

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

878348720 is a wasteful number, since it uses less digits than its factorization.

878348720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022 (or 2016 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 47.

The square root of 878348720 is about 29636.9485608758. The cubic root of 878348720 is about 957.6842040059.

The spelling of 878348720 in words is "eight hundred seventy-eight million, three hundred forty-eight thousand, seven hundred twenty".