6718345 has 4 divisors (see below), whose sum is σ = 8062020. Its totient is φ = 5374672.

The previous prime is 6718339. The next prime is 6718367. The reversal of 6718345 is 5438176.

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 900601 + 5817744 = 949^2 + 2412^2 .

It is a cyclic number.

It is not a de Polignac number, because 6718345 - 2³ = 6718337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6718345.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671830 + ... + 671839.

It is an arithmetic number, because the mean of its divisors is an integer number (2015505).

Almost surely, 2^6718345 is an apocalyptic number.

It is an amenable number.

6718345 is a deficient number, since it is larger than the sum of its proper divisors (1343675).

6718345 is a wasteful number, since it uses less digits than its factorization.

6718345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343674.

The product of its digits is 20160, while the sum is 34.

The square root of 6718345 is about 2591.9770446514. The cubic root of 6718345 is about 188.6922663067.

The spelling of 6718345 in words is "six million, seven hundred eighteen thousand, three hundred forty-five".