475666 has 8 divisors (see below), whose sum is σ = 730224. Its totient is φ = 232260.

The previous prime is 475649. The next prime is 475669. The reversal of 475666 is 666574.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (475669) 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, 2680 + ... + 2851.

It is an arithmetic number, because the mean of its divisors is an integer number (91278).

2⁴⁷⁵⁶⁶⁶ is an apocalyptic number.

475666 is a deficient number, since it is larger than the sum of its proper divisors (254558).

475666 is a wasteful number, since it uses less digits than its factorization.

475666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5576.

The product of its digits is 30240, while the sum is 34.

The square root of 475666 is about 689.6854355429. The cubic root of 475666 is about 78.0609867104.

The spelling of 475666 in words is "four hundred seventy-five thousand, six hundred sixty-six".