3006661 has 8 divisors (see below), whose sum is σ = 3480320. Its totient is φ = 2544048.

The previous prime is 3006649. The next prime is 3006667. The reversal of 3006661 is 1666003.

3006661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3006661 - 2⁷ = 3006533 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 (3006667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2166 + ... + 3271.

It is an arithmetic number, because the mean of its divisors is an integer number (435040).

Almost surely, 2^3006661 is an apocalyptic number.

It is an amenable number.

3006661 is a deficient number, since it is larger than the sum of its proper divisors (473659).

3006661 is an equidigital number, since it uses as much as digits as its factorization.

3006661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5523.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3006661 is about 1733.9726064734. The cubic root of 3006661 is about 144.3316206199.

The spelling of 3006661 in words is "three million, six thousand, six hundred sixty-one".