6749866 has 12 divisors (see below), whose sum is σ = 10488582. Its totient is φ = 3257744.

The previous prime is 6749861. The next prime is 6749887. The reversal of 6749866 is 6689476.

It can be written as a sum of positive squares in 3 ways, for example, as 6528025 + 221841 = 2555^2 + 471^2 .

It is not an unprimeable number, because it can be changed into a prime (6749861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 325 + ... + 3688.

Almost surely, 2^6749866 is an apocalyptic number.

6749866 is a deficient number, since it is larger than the sum of its proper divisors (3738716).

6749866 is a wasteful number, since it uses less digits than its factorization.

6749866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4073 (or 4044 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 6749866 is about 2598.0504229133. The cubic root of 6749866 is about 188.9869068877.

The spelling of 6749866 in words is "six million, seven hundred forty-nine thousand, eight hundred sixty-six".