6818445 has 32 divisors (see below), whose sum is σ = 12839040. Its totient is φ = 3421440.

The previous prime is 6818437. The next prime is 6818447. The reversal of 6818445 is 5448186.

It is not a de Polignac number, because 6818445 - 2³ = 6818437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6818447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 810 + ... + 3780.

It is an arithmetic number, because the mean of its divisors is an integer number (401220).

Almost surely, 2^6818445 is an apocalyptic number.

It is an amenable number.

6818445 is a deficient number, since it is larger than the sum of its proper divisors (6020595).

6818445 is a wasteful number, since it uses less digits than its factorization.

6818445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002 (or 2996 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 6818445 is about 2611.2152343306. The cubic root of 6818445 is about 189.6247904614.

The spelling of 6818445 in words is "six million, eight hundred eighteen thousand, four hundred forty-five".