6878920 has 32 divisors (see below), whose sum is σ = 15811200. Its totient is φ = 2692288.

The previous prime is 6878917. The next prime is 6878951. The reversal of 6878920 is 298786.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 51 + ... + 3709.

It is an arithmetic number, because the mean of its divisors is an integer number (494100).

Almost surely, 2^6878920 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 6878920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7905600).

6878920 is an abundant number, since it is smaller than the sum of its proper divisors (8932280).

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

6878920 is a wasteful number, since it uses less digits than its factorization.

6878920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3717 (or 3713 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 6878920 is about 2622.7695285709. The cubic root of 6878920 is about 190.1837557440.

The spelling of 6878920 in words is "six million, eight hundred seventy-eight thousand, nine hundred twenty".