666227 has 4 divisors (see below), whose sum is σ = 671160. Its totient is φ = 661296.

The previous prime is 666203. The next prime is 666229. The reversal of 666227 is 722666.

666227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 666227 - 2¹⁴ = 649843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 666227.

It is not an unprimeable number, because it can be changed into a prime (666229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2258 + ... + 2535.

It is an arithmetic number, because the mean of its divisors is an integer number (167790).

2⁶⁶⁶²²⁷ is an apocalyptic number.

666227 is a deficient number, since it is larger than the sum of its proper divisors (4933).

666227 is a wasteful number, since it uses less digits than its factorization.

666227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4932.

The product of its digits is 6048, while the sum is 29.

The square root of 666227 is about 816.2272967746. The cubic root of 666227 is about 87.3388380398.

The spelling of 666227 in words is "six hundred sixty-six thousand, two hundred twenty-seven".