3666785 has 8 divisors (see below), whose sum is σ = 4456320. Its totient is φ = 2895984.

The previous prime is 3666757. The next prime is 3666787. The reversal of 3666785 is 5876663.

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 3666785 - 2⁸ = 3666529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3666787) 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, 4247 + ... + 5036.

It is an arithmetic number, because the mean of its divisors is an integer number (557040).

Almost surely, 2^3666785 is an apocalyptic number.

It is an amenable number.

3666785 is a deficient number, since it is larger than the sum of its proper divisors (789535).

3666785 is an equidigital number, since it uses as much as digits as its factorization.

3666785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9367.

The product of its digits is 181440, while the sum is 41.

The square root of 3666785 is about 1914.8851140473. The cubic root of 3666785 is about 154.2038257964.

The spelling of 3666785 in words is "three million, six hundred sixty-six thousand, seven hundred eighty-five".