3666305 has 8 divisors (see below), whose sum is σ = 4658472. Its totient is φ = 2760448.

The previous prime is 3666301. The next prime is 3666317. The reversal of 3666305 is 5036663.

It can be written as a sum of positive squares in 4 ways, for example, as 364816 + 3301489 = 604^2 + 1817^2 .

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 3666305 - 2² = 3666301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3666301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21482 + ... + 21651.

It is an arithmetic number, because the mean of its divisors is an integer number (582309).

Almost surely, 2^3666305 is an apocalyptic number.

It is an amenable number.

3666305 is a deficient number, since it is larger than the sum of its proper divisors (992167).

3666305 is a wasteful number, since it uses less digits than its factorization.

3666305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43155.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 3666305 is about 1914.7597760555. The cubic root of 3666305 is about 154.1970968257.

The spelling of 3666305 in words is "three million, six hundred sixty-six thousand, three hundred five".