6847066009 has 9 divisors (see below), whose sum is σ = 7965628191. Its totient is φ = 5868417240.

The previous prime is 6847066003. The next prime is 6847066019. The reversal of 6847066009 is 9006607486.

The square root of 6847066009 is 82747.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 939606409 + 5907459600 = 30653^2 + 76860^2 .

It is not a de Polignac number, because 6847066009 - 2³ = 6847066001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6847066009.

It is not an unprimeable number, because it can be changed into a prime (6847066001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 573319 + ... + 585139.

It is an arithmetic number, because the mean of its divisors is an integer number (885069799).

Almost surely, 2^6847066009 is an apocalyptic number.

6847066009 is the 82747-th square number.

6847066009 is the 41374-th centered octagonal number.

It is an amenable number.

6847066009 is a deficient number, since it is larger than the sum of its proper divisors (1118562182).

6847066009 is an frugal number, since it uses more digits than its factorization.

6847066009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23656 (or 11828 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The cubic root of 6847066009 is about 1898.8974220660.

The spelling of 6847066009 in words is "six billion, eight hundred forty-seven million, sixty-six thousand, nine".