6878979 has 8 divisors (see below), whose sum is σ = 10191120. Its totient is φ = 4585968.

The previous prime is 6878959. The next prime is 6878981. The reversal of 6878979 is 9798786.

It is not a de Polignac number, because 6878979 - 2⁹ = 6878467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6878959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127362 + ... + 127415.

It is an arithmetic number, because the mean of its divisors is an integer number (1273890).

Almost surely, 2^6878979 is an apocalyptic number.

6878979 is a deficient number, since it is larger than the sum of its proper divisors (3312141).

6878979 is a wasteful number, since it uses less digits than its factorization.

6878979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254786 (or 254780 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 54.

The square root of 6878979 is about 2622.7807761992. The cubic root of 6878979 is about 190.1842994732.

The spelling of 6878979 in words is "six million, eight hundred seventy-eight thousand, nine hundred seventy-nine".