6880779 has 12 divisors (see below), whose sum is σ = 10208016. Its totient is φ = 4462992.

The previous prime is 6880777. The next prime is 6880781. The reversal of 6880779 is 9770886.

It is an interprime number because it is at equal distance from previous prime (6880777) and next prime (6880781).

It is not a de Polignac number, because 6880779 - 2¹ = 6880777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6880771) 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 11 ways as a sum of consecutive naturals, for example, 9999 + ... + 10664.

It is an arithmetic number, because the mean of its divisors is an integer number (850668).

Almost surely, 2^6880779 is an apocalyptic number.

6880779 is a deficient number, since it is larger than the sum of its proper divisors (3327237).

6880779 is a wasteful number, since it uses less digits than its factorization.

6880779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20706 (or 20703 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 6880779 is about 2623.1239010005. The cubic root of 6880779 is about 190.2008863284.

It can be divided in two parts, 68807 and 79, that added together give a palindrome (68886).

The spelling of 6880779 in words is "six million, eight hundred eighty thousand, seven hundred seventy-nine".