3706566 has 8 divisors (see below), whose sum is σ = 7413144. Its totient is φ = 1235520.

The previous prime is 3706529. The next prime is 3706609. The reversal of 3706566 is 6656073.

3706566 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.

3706566 is an admirable number.

It is a super-3 number, since 3×3706566³ (a number of 21 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 308875 + ... + 308886.

It is an arithmetic number, because the mean of its divisors is an integer number (926643).

Almost surely, 2^3706566 is an apocalyptic number.

3706566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3706566 is a wasteful number, since it uses less digits than its factorization.

3706566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617766.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 3706566 is about 1925.2444000698. The cubic root of 3706566 is about 154.7594743317.

The spelling of 3706566 in words is "three million, seven hundred six thousand, five hundred sixty-six".