6879563 has 4 divisors (see below), whose sum is σ = 6902280. Its totient is φ = 6856848.

The previous prime is 6879541. The next prime is 6879581. The reversal of 6879563 is 3659786.

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

It is a cyclic number.

It is not a de Polignac number, because 6879563 - 2⁸ = 6879307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6879533) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 10898 + ... + 11511.

It is an arithmetic number, because the mean of its divisors is an integer number (1725570).

Almost surely, 2^6879563 is an apocalyptic number.

6879563 is a deficient number, since it is larger than the sum of its proper divisors (22717).

6879563 is a wasteful number, since it uses less digits than its factorization.

6879563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22716.

The product of its digits is 272160, while the sum is 44.

The square root of 6879563 is about 2622.8921060539. The cubic root of 6879563 is about 190.1896813033.

The spelling of 6879563 in words is "six million, eight hundred seventy-nine thousand, five hundred sixty-three".