6668936 has 8 divisors (see below), whose sum is σ = 12504270. Its totient is φ = 3334464.

The previous prime is 6668911. The next prime is 6668939. The reversal of 6668936 is 6398666.

It can be written as a sum of positive squares in only one way, i.e., 6220036 + 448900 = 2494^2 + 670^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6668939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 416801 + ... + 416816.

Almost surely, 2^6668936 is an apocalyptic number.

It is an amenable number.

6668936 is a deficient number, since it is larger than the sum of its proper divisors (5835334).

6668936 is a wasteful number, since it uses less digits than its factorization.

6668936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833623 (or 833619 counting only the distinct ones).

The product of its digits is 279936, while the sum is 44.

The square root of 6668936 is about 2582.4283145907. The cubic root of 6668936 is about 188.2285585978.

The spelling of 6668936 in words is "six million, six hundred sixty-eight thousand, nine hundred thirty-six".