6800661 has 24 divisors (see below), whose sum is σ = 11460800. Its totient is φ = 3884328.

The previous prime is 6800657. The next prime is 6800669. The reversal of 6800661 is 1660086.

It is not a de Polignac number, because 6800661 - 2² = 6800657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6800669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1986 + ... + 4188.

Almost surely, 2^6800661 is an apocalyptic number.

It is an amenable number.

6800661 is a deficient number, since it is larger than the sum of its proper divisors (4660139).

6800661 is a wasteful number, since it uses less digits than its factorization.

6800661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230 (or 2213 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 6800661 is about 2607.8076999656. The cubic root of 6800661 is about 189.4597859079.

The spelling of 6800661 in words is "six million, eight hundred thousand, six hundred sixty-one".