6879449 has 4 divisors (see below), whose sum is σ = 6885120. Its totient is φ = 6873780.

The previous prime is 6879443. The next prime is 6879451. The reversal of 6879449 is 9449786.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6879449 - 2⁸ = 6879193 is a prime.

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

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 3 ways as a sum of consecutive naturals, for example, 197 + ... + 3714.

It is an arithmetic number, because the mean of its divisors is an integer number (1721280).

Almost surely, 2^6879449 is an apocalyptic number.

It is an amenable number.

6879449 is a deficient number, since it is larger than the sum of its proper divisors (5671).

6879449 is a wasteful number, since it uses less digits than its factorization.

6879449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5670.

The product of its digits is 435456, while the sum is 47.

The square root of 6879449 is about 2622.8703742274. The cubic root of 6879449 is about 190.1886307645.

It can be divided in two parts, 68794 and 49, that multiplied together give a triangular number (3370906 = T₂₅₉₆).

The spelling of 6879449 in words is "six million, eight hundred seventy-nine thousand, four hundred forty-nine".