878297580 has 120 divisors (see below), whose sum is σ = 2844293760. Its totient is φ = 226644480.

The previous prime is 878297579. The next prime is 878297587. The reversal of 878297580 is 85792878.

878297580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878297587) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 41476 + ... + 58964.

It is an arithmetic number, because the mean of its divisors is an integer number (23702448).

Almost surely, 2^878297580 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 878297580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1422146880).

878297580 is an abundant number, since it is smaller than the sum of its proper divisors (1965996180).

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

878297580 is a wasteful number, since it uses less digits than its factorization.

878297580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17541 (or 17530 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

The square root of 878297580 is about 29636.0857739345. The cubic root of 878297580 is about 957.6656172648.

The spelling of 878297580 in words is "eight hundred seventy-eight million, two hundred ninety-seven thousand, five hundred eighty".