6878020 has 12 divisors (see below), whose sum is σ = 14443884. Its totient is φ = 2751200.

The previous prime is 6877993. The next prime is 6878023. The reversal of 6878020 is 208786.

It can be written as a sum of positive squares in 2 ways, for example, as 2617924 + 4260096 = 1618^2 + 2064^2 .

It is not an unprimeable number, because it can be changed into a prime (6878023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171931 + ... + 171970.

It is an arithmetic number, because the mean of its divisors is an integer number (1203657).

Almost surely, 2^6878020 is an apocalyptic number.

It is an amenable number.

6878020 is an abundant number, since it is smaller than the sum of its proper divisors (7565864).

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

6878020 is a wasteful number, since it uses less digits than its factorization.

6878020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343910 (or 343908 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 6878020 is about 2622.5979485998. The cubic root of 6878020 is about 190.1754611839.

The spelling of 6878020 in words is "six million, eight hundred seventy-eight thousand, twenty".