6847345 has 8 divisors (see below), whose sum is σ = 8700264. Its totient is φ = 5155584.

The previous prime is 6847319. The next prime is 6847349. The reversal of 6847345 is 5437486.

It can be written as a sum of positive squares in 4 ways, for example, as 1607824 + 5239521 = 1268^2 + 2289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6847345 - 2¹³ = 6839153 is a prime.

It is a super-2 number, since 2×6847345² = 93772267098050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6847349) 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 7 ways as a sum of consecutive naturals, for example, 40194 + ... + 40363.

It is an arithmetic number, because the mean of its divisors is an integer number (1087533).

Almost surely, 2^6847345 is an apocalyptic number.

It is an amenable number.

6847345 is a deficient number, since it is larger than the sum of its proper divisors (1852919).

6847345 is a wasteful number, since it uses less digits than its factorization.

6847345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80579.

The product of its digits is 80640, while the sum is 37.

The square root of 6847345 is about 2616.7432048254. The cubic root of 6847345 is about 189.8923212582.

The spelling of 6847345 in words is "six million, eight hundred forty-seven thousand, three hundred forty-five".