4489666 has 8 divisors (see below), whose sum is σ = 7130700. Its totient is φ = 2112768.

The previous prime is 4489663. The next prime is 4489687. The reversal of 4489666 is 6669844.

It can be written as a sum of positive squares in 2 ways, for example, as 4305625 + 184041 = 2075^2 + 429^2 .

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

It is not an unprimeable number, because it can be changed into a prime (4489663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65991 + ... + 66058.

Almost surely, 2^4489666 is an apocalyptic number.

4489666 is a deficient number, since it is larger than the sum of its proper divisors (2641034).

4489666 is a wasteful number, since it uses less digits than its factorization.

4489666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132068.

The product of its digits is 248832, while the sum is 43.

The square root of 4489666 is about 2118.8831964032. The cubic root of 4489666 is about 164.9698873728.

The spelling of 4489666 in words is "four million, four hundred eighty-nine thousand, six hundred sixty-six".