6749879 has 4 divisors (see below), whose sum is σ = 7043376. Its totient is φ = 6456384.

The previous prime is 6749861. The next prime is 6749887. The reversal of 6749879 is 9789476.

It is a happy number.

6749879 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6749879 - 2¹⁶ = 6684343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6749819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146714 + ... + 146759.

It is an arithmetic number, because the mean of its divisors is an integer number (1760844).

Almost surely, 2^6749879 is an apocalyptic number.

6749879 is a deficient number, since it is larger than the sum of its proper divisors (293497).

6749879 is a wasteful number, since it uses less digits than its factorization.

6749879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293496.

The product of its digits is 762048, while the sum is 50.

The square root of 6749879 is about 2598.0529247881. The cubic root of 6749879 is about 188.9870282149.

The spelling of 6749879 in words is "six million, seven hundred forty-nine thousand, eight hundred seventy-nine".