6678379 has 4 divisors (see below), whose sum is σ = 6713176. Its totient is φ = 6643584.

The previous prime is 6678317. The next prime is 6678383. The reversal of 6678379 is 9738766.

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 6678379 - 2¹¹ = 6676331 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 (6678079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17109 + ... + 17494.

It is an arithmetic number, because the mean of its divisors is an integer number (1678294).

Almost surely, 2^6678379 is an apocalyptic number.

6678379 is a deficient number, since it is larger than the sum of its proper divisors (34797).

6678379 is a wasteful number, since it uses less digits than its factorization.

6678379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34796.

The product of its digits is 381024, while the sum is 46.

The square root of 6678379 is about 2584.2559857723. The cubic root of 6678379 is about 188.3173585705.

Adding to 6678379 its product of digits (381024), we get a triangular number (7059403 = T₃₇₅₇).

The spelling of 6678379 in words is "six million, six hundred seventy-eight thousand, three hundred seventy-nine".