6879445 has 8 divisors (see below), whose sum is σ = 8270136. Its totient is φ = 5493696.

The previous prime is 6879443. The next prime is 6879451. The reversal of 6879445 is 5449786.

It can be written as a sum of positive squares in 4 ways, for example, as 88209 + 6791236 = 297^2 + 2606^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6879445 - 2¹ = 6879443 is a prime.

It is a d-powerful number, because it can be written as 6 + 8³ + 7⁸ + 9 + 4⁸ + 4¹⁰ + 5 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6879443) 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 7 ways as a sum of consecutive naturals, for example, 3459 + ... + 5071.

It is an arithmetic number, because the mean of its divisors is an integer number (1033767).

Almost surely, 2^6879445 is an apocalyptic number.

It is an amenable number.

6879445 is a deficient number, since it is larger than the sum of its proper divisors (1390691).

6879445 is a wasteful number, since it uses less digits than its factorization.

6879445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471.

The product of its digits is 241920, while the sum is 43.

The square root of 6879445 is about 2622.8696117039. The cubic root of 6879445 is about 190.1885939033.

The spelling of 6879445 in words is "six million, eight hundred seventy-nine thousand, four hundred forty-five".