6681194 has 16 divisors (see below), whose sum is σ = 11166120. Its totient is φ = 2976960.

The previous prime is 6681193. The next prime is 6681197. The reversal of 6681194 is 4911866.

It can be written as a sum of positive squares in 4 ways, for example, as 6315169 + 366025 = 2513^2 + 605^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6681193) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3677 + ... + 5184.

Almost surely, 2^6681194 is an apocalyptic number.

6681194 is a deficient number, since it is larger than the sum of its proper divisors (4484926).

6681194 is a wasteful number, since it uses less digits than its factorization.

6681194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8905.

The product of its digits is 10368, while the sum is 35.

The square root of 6681194 is about 2584.8005725781. The cubic root of 6681194 is about 188.3438140372.

The spelling of 6681194 in words is "six million, six hundred eighty-one thousand, one hundred ninety-four".