667226 has 8 divisors (see below), whose sum is σ = 1143840. Its totient is φ = 285948.

The previous prime is 667211. The next prime is 667229. The reversal of 667226 is 622766.

667226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (667229) 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, 23816 + ... + 23843.

It is an arithmetic number, because the mean of its divisors is an integer number (142980).

2⁶⁶⁷²²⁶ is an apocalyptic number.

667226 is a deficient number, since it is larger than the sum of its proper divisors (476614).

667226 is a wasteful number, since it uses less digits than its factorization.

667226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47668.

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

The square root of 667226 is about 816.8390294299. The cubic root of 667226 is about 87.3824707779.

The spelling of 667226 in words is "six hundred sixty-seven thousand, two hundred twenty-six".