6878579 has 2 divisors, whose sum is σ = 6878580. Its totient is φ = 6878578.

The previous prime is 6878569. The next prime is 6878593. The reversal of 6878579 is 9758786.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6878579 is a prime.

It is not a weakly prime, because it can be changed into another prime (6878519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3439289 + 3439290.

It is an arithmetic number, because the mean of its divisors is an integer number (3439290).

Almost surely, 2^6878579 is an apocalyptic number.

6878579 is a deficient number, since it is larger than the sum of its proper divisors (1).

6878579 is an equidigital number, since it uses as much as digits as its factorization.

6878579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 50.

The square root of 6878579 is about 2622.7045201471. The cubic root of 6878579 is about 190.1806131125.

The spelling of 6878579 in words is "six million, eight hundred seventy-eight thousand, five hundred seventy-nine".