667227 has 8 divisors (see below), whose sum is σ = 970560. Its totient is φ = 404360.

The previous prime is 667211. The next prime is 667229. The reversal of 667227 is 722766.

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

It is not a de Polignac number, because 667227 - 2⁴ = 667211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 667194 and 667203.

It is not an unprimeable number, because it can be changed into a prime (667229) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 10077 + ... + 10142.

It is an arithmetic number, because the mean of its divisors is an integer number (121320).

2⁶⁶⁷²²⁷ is an apocalyptic number.

667227 is a deficient number, since it is larger than the sum of its proper divisors (303333).

667227 is a wasteful number, since it uses less digits than its factorization.

667227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20233.

The product of its digits is 7056, while the sum is 30.

The square root of 667227 is about 816.8396415454. The cubic root of 667227 is about 87.3825144325.

The spelling of 667227 in words is "six hundred sixty-seven thousand, two hundred twenty-seven".