6812066 has 4 divisors (see below), whose sum is σ = 10218102. Its totient is φ = 3406032.

The previous prime is 6812021. The next prime is 6812077. The reversal of 6812066 is 6602186.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6602186 = 2 ⋅3301093.

It can be written as a sum of positive squares in only one way, i.e., 5900041 + 912025 = 2429^2 + 955^2 .

It is an Ulam number.

It is a Curzon number.

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, 1703015 + ... + 1703018.

Almost surely, 2^6812066 is an apocalyptic number.

6812066 is a deficient number, since it is larger than the sum of its proper divisors (3406036).

6812066 is a wasteful number, since it uses less digits than its factorization.

6812066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406035.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 6812066 is about 2609.9934865819. The cubic root of 6812066 is about 189.5656374848.

It can be divided in two parts, 68120 and 66, that added together give a palindrome (68186).

The spelling of 6812066 in words is "six million, eight hundred twelve thousand, sixty-six".