6745866 has 16 divisors (see below), whose sum is σ = 13522464. Its totient is φ = 2243504.

The previous prime is 6745841. The next prime is 6745873. The reversal of 6745866 is 6685476.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 2380 + ... + 4376.

It is an arithmetic number, because the mean of its divisors is an integer number (845154).

Almost surely, 2^6745866 is an apocalyptic number.

6745866 is an abundant number, since it is smaller than the sum of its proper divisors (6776598).

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

6745866 is a wasteful number, since it uses less digits than its factorization.

6745866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565.

The product of its digits is 241920, while the sum is 42.

The square root of 6745866 is about 2597.2805008316. The cubic root of 6745866 is about 188.9495680228.

The spelling of 6745866 in words is "six million, seven hundred forty-five thousand, eight hundred sixty-six".