6843878 has 4 divisors (see below), whose sum is σ = 10265820. Its totient is φ = 3421938.

The previous prime is 6843869. The next prime is 6843899. The reversal of 6843878 is 8783486.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710968 + ... + 1710971.

It is an arithmetic number, because the mean of its divisors is an integer number (2566455).

Almost surely, 2^6843878 is an apocalyptic number.

6843878 is a deficient number, since it is larger than the sum of its proper divisors (3421942).

6843878 is a wasteful number, since it uses less digits than its factorization.

6843878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3421941.

The product of its digits is 258048, while the sum is 44.

The square root of 6843878 is about 2616.0806562490. The cubic root of 6843878 is about 189.8602666042.

The spelling of 6843878 in words is "six million, eight hundred forty-three thousand, eight hundred seventy-eight".