6666736 has 20 divisors (see below), whose sum is σ = 13334464. Its totient is φ = 3225600.

The previous prime is 6666719. The next prime is 6666749. The reversal of 6666736 is 6376666.

6666736 is an admirable number.

It is a congruent 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 in 3 ways as a sum of consecutive naturals, for example, 6225 + ... + 7216.

Almost surely, 2^6666736 is an apocalyptic number.

It is an amenable number.

6666736 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6666736 is a wasteful number, since it uses less digits than its factorization.

6666736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13480 (or 13474 counting only the distinct ones).

The product of its digits is 163296, while the sum is 40.

The square root of 6666736 is about 2582.0023237790. The cubic root of 6666736 is about 188.2078582256.

The spelling of 6666736 in words is "six million, six hundred sixty-six thousand, seven hundred thirty-six".