6943345 has 4 divisors (see below), whose sum is σ = 8332020. Its totient is φ = 5554672.

The previous prime is 6943319. The next prime is 6943351. The reversal of 6943345 is 5433496.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4562496 + 2380849 = 2136^2 + 1543^2 .

It is a cyclic number.

It is not a de Polignac number, because 6943345 - 2¹³ = 6935153 is a prime.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 6943345.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 694330 + ... + 694339.

It is an arithmetic number, because the mean of its divisors is an integer number (2083005).

Almost surely, 2^6943345 is an apocalyptic number.

It is an amenable number.

6943345 is a deficient number, since it is larger than the sum of its proper divisors (1388675).

6943345 is a wasteful number, since it uses less digits than its factorization.

6943345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388674.

The product of its digits is 38880, while the sum is 34.

The square root of 6943345 is about 2635.0227703001. The cubic root of 6943345 is about 190.7756381631.

The spelling of 6943345 in words is "six million, nine hundred forty-three thousand, three hundred forty-five".