4189666 has 8 divisors (see below), whose sum is σ = 6767964. Its totient is φ = 1933680.

The previous prime is 4189651. The next prime is 4189673. The reversal of 4189666 is 6669814.

It can be written as a sum of positive squares in 2 ways, for example, as 3515625 + 674041 = 1875^2 + 821^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80545 + ... + 80596.

Almost surely, 2^4189666 is an apocalyptic number.

4189666 is a deficient number, since it is larger than the sum of its proper divisors (2578298).

4189666 is a wasteful number, since it uses less digits than its factorization.

4189666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161156.

The product of its digits is 62208, while the sum is 40.

The square root of 4189666 is about 2046.8673625812. The cubic root of 4189666 is about 161.2104291660.

The spelling of 4189666 in words is "four million, one hundred eighty-nine thousand, six hundred sixty-six".