6849559 has 2 divisors, whose sum is σ = 6849560. Its totient is φ = 6849558.

The previous prime is 6849541. The next prime is 6849569. The reversal of 6849559 is 9559486.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6849559 - 2⁵ = 6849527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6849509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3424779 + 3424780.

It is an arithmetic number, because the mean of its divisors is an integer number (3424780).

Almost surely, 2^6849559 is an apocalyptic number.

6849559 is a deficient number, since it is larger than the sum of its proper divisors (1).

6849559 is an equidigital number, since it uses as much as digits as its factorization.

6849559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 46.

The square root of 6849559 is about 2617.1662155851. The cubic root of 6849559 is about 189.9127854573.

It can be divided in two parts, 684 and 9559, that multiplied together give a palindrome (6538356).

The spelling of 6849559 in words is "six million, eight hundred forty-nine thousand, five hundred fifty-nine".