472666 has 4 divisors (see below), whose sum is σ = 709002. Its totient is φ = 236332.

The previous prime is 472643. The next prime is 472669. The reversal of 472666 is 666274.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 385641 + 87025 = 621^2 + 295^2 .

It is an Ulam number.

472666 is a modest number, since divided by 666 gives 472 as remainder.

It is not an unprimeable number, because it can be changed into a prime (472669) by changing a digit.

472666 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118165 + ... + 118168.

2⁴⁷²⁶⁶⁶ is an apocalyptic number.

472666 is a deficient number, since it is larger than the sum of its proper divisors (236336).

472666 is a wasteful number, since it uses less digits than its factorization.

472666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236335.

The product of its digits is 12096, while the sum is 31.

The square root of 472666 is about 687.5070908725. The cubic root of 472666 is about 77.8965316664.

The spelling of 472666 in words is "four hundred seventy-two thousand, six hundred sixty-six".