6679789 has 2 divisors, whose sum is σ = 6679790. Its totient is φ = 6679788.

The previous prime is 6679763. The next prime is 6679801. The reversal of 6679789 is 9879766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4338889 + 2340900 = 2083^2 + 1530^2 .

It is a cyclic number.

It is not a de Polignac number, because 6679789 - 2⁷ = 6679661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6679289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3339894 + 3339895.

It is an arithmetic number, because the mean of its divisors is an integer number (3339895).

Almost surely, 2^6679789 is an apocalyptic number.

It is an amenable number.

6679789 is a deficient number, since it is larger than the sum of its proper divisors (1).

6679789 is an equidigital number, since it uses as much as digits as its factorization.

6679789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 52.

The square root of 6679789 is about 2584.5287771662. The cubic root of 6679789 is about 188.3306107280.

The spelling of 6679789 in words is "six million, six hundred seventy-nine thousand, seven hundred eighty-nine".