878722720 has 48 divisors (see below), whose sum is σ = 2089264968. Its totient is φ = 349240320.

The previous prime is 878722711. The next prime is 878722727. The reversal of 878722720 is 27227878.

It can be written as a sum of positive squares in 4 ways, for example, as 647804304 + 230918416 = 25452^2 + 15196^2 .

It is not an unprimeable number, because it can be changed into a prime (878722727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7630 + ... + 42610.

Almost surely, 2^878722720 is an apocalyptic number.

878722720 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 878722720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1044632484).

878722720 is an abundant number, since it is smaller than the sum of its proper divisors (1210542248).

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

878722720 is a wasteful number, since it uses less digits than its factorization.

878722720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35153 (or 35145 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 43.

The square root of 878722720 is about 29643.2575807721. The cubic root of 878722720 is about 957.8201117076.

The spelling of 878722720 in words is "eight hundred seventy-eight million, seven hundred twenty-two thousand, seven hundred twenty".