878020 has 48 divisors (see below), whose sum is σ = 2173248. Its totient is φ = 293760.

The previous prime is 878011. The next prime is 878021. The reversal of 878020 is 20878.

878020 = T₄₅ + T₄₆ + ... + T₁₇₄.

878020 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 (25) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (878021) by changing a digit.

878020 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2707 + ... + 3013.

It is an arithmetic number, because the mean of its divisors is an integer number (45276).

2⁸⁷⁸⁰²⁰ 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 878020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1086624).

878020 is an abundant number, since it is smaller than the sum of its proper divisors (1295228).

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

878020 is a wasteful number, since it uses less digits than its factorization.

878020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 878020 is about 937.0272141192. The cubic root of 878020 is about 95.7564718724.

Adding to 878020 its reverse (20878), we get a palindrome (898898).

The spelling of 878020 in words is "eight hundred seventy-eight thousand, twenty".