6806818 has 4 divisors (see below), whose sum is σ = 10210230. Its totient is φ = 3403408.

The previous prime is 6806803. The next prime is 6806831. The reversal of 6806818 is 8186086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8186086 = 2 ⋅4093043.

It can be written as a sum of positive squares in only one way, i.e., 5349969 + 1456849 = 2313^2 + 1207^2 .

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 as a sum of consecutive naturals, namely, 1701703 + ... + 1701706.

Almost surely, 2^6806818 is an apocalyptic number.

6806818 is a deficient number, since it is larger than the sum of its proper divisors (3403412).

6806818 is a wasteful number, since it uses less digits than its factorization.

6806818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403411.

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 6806818 is about 2608.9879263806. The cubic root of 6806818 is about 189.5169446678.

It can be divided in two parts, 68068 and 18, that added together give a palindrome (68086).

The spelling of 6806818 in words is "six million, eight hundred six thousand, eight hundred eighteen".