6843745 has 8 divisors (see below), whose sum is σ = 8240616. Its totient is φ = 5456256.

The previous prime is 6843709. The next prime is 6843757. The reversal of 6843745 is 5473486.

6843745 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 289 + 6843456 = 17^2 + 2616^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6843745 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 622 + ... + 3751.

It is an arithmetic number, because the mean of its divisors is an integer number (1030077).

Almost surely, 2^6843745 is an apocalyptic number.

It is an amenable number.

6843745 is a deficient number, since it is larger than the sum of its proper divisors (1396871).

6843745 is a wasteful number, since it uses less digits than its factorization.

6843745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4691.

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

The square root of 6843745 is about 2616.0552364199. The cubic root of 6843745 is about 189.8590367177.

The spelling of 6843745 in words is "six million, eight hundred forty-three thousand, seven hundred forty-five".