6689359 has 2 divisors, whose sum is σ = 6689360. Its totient is φ = 6689358.

The previous prime is 6689351. The next prime is 6689363. The reversal of 6689359 is 9539866.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6689359 - 2³ = 6689351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6689351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3344679 + 3344680.

It is an arithmetic number, because the mean of its divisors is an integer number (3344680).

Almost surely, 2^6689359 is an apocalyptic number.

6689359 is a deficient number, since it is larger than the sum of its proper divisors (1).

6689359 is an equidigital number, since it uses as much as digits as its factorization.

6689359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 46.

The square root of 6689359 is about 2586.3795158484. The cubic root of 6689359 is about 188.4205069763.

The spelling of 6689359 in words is "six million, six hundred eighty-nine thousand, three hundred fifty-nine".