6696668 has 12 divisors (see below), whose sum is σ = 12784632. Its totient is φ = 3043920.

The previous prime is 6696661. The next prime is 6696671. The reversal of 6696668 is 8666966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6696661) 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 3 ways as a sum of consecutive naturals, for example, 76055 + ... + 76142.

It is an arithmetic number, because the mean of its divisors is an integer number (1065386).

Almost surely, 2^6696668 is an apocalyptic number.

It is an amenable number.

6696668 is a deficient number, since it is larger than the sum of its proper divisors (6087964).

6696668 is a wasteful number, since it uses less digits than its factorization.

6696668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152212 (or 152210 counting only the distinct ones).

The product of its digits is 559872, while the sum is 47.

The square root of 6696668 is about 2587.7921091154. The cubic root of 6696668 is about 188.4891066838.

It can be divided in two parts, 669 and 6668, that added together give a palindrome (7337).

The spelling of 6696668 in words is "six million, six hundred ninety-six thousand, six hundred sixty-eight".