3666673 has 8 divisors (see below), whose sum is σ = 3859200. Its totient is φ = 3478608.

The previous prime is 3666661. The next prime is 3666703. The reversal of 3666673 is 3766663.

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

It is a de Polignac number, because none of the positive numbers 2^k-3666673 is a prime.

It is an Ulam number.

It is a Duffinian number.

3666673 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3666613) 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, 640 + ... + 2782.

It is an arithmetic number, because the mean of its divisors is an integer number (482400).

Almost surely, 2^3666673 is an apocalyptic number.

It is an amenable number.

3666673 is a deficient number, since it is larger than the sum of its proper divisors (192527).

3666673 is a wasteful number, since it uses less digits than its factorization.

3666673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2231.

The product of its digits is 81648, while the sum is 37.

The square root of 3666673 is about 1914.8558692497. The cubic root of 3666673 is about 154.2022557558.

The spelling of 3666673 in words is "three million, six hundred sixty-six thousand, six hundred seventy-three".