3666109 has 4 divisors (see below), whose sum is σ = 3695104. Its totient is φ = 3637116.

The previous prime is 3666077. The next prime is 3666119. The reversal of 3666109 is 9016663.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3666109 - 2⁵ = 3666077 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 (3666119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14307 + ... + 14560.

It is an arithmetic number, because the mean of its divisors is an integer number (923776).

Almost surely, 2^3666109 is an apocalyptic number.

It is an amenable number.

3666109 is a deficient number, since it is larger than the sum of its proper divisors (28995).

3666109 is a wasteful number, since it uses less digits than its factorization.

3666109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28994.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 3666109 is about 1914.7085940163. The cubic root of 3666109 is about 154.1943489938.

The spelling of 3666109 in words is "three million, six hundred sixty-six thousand, one hundred nine".