667238 has 16 divisors (see below), whose sum is σ = 1176336. Its totient is φ = 279840.

The previous prime is 667229. The next prime is 667241. The reversal of 667238 is 832766.

667238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

667238 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881 + ... + 1452.

It is an arithmetic number, because the mean of its divisors is an integer number (73521).

2⁶⁶⁷²³⁸ is an apocalyptic number.

667238 is a deficient number, since it is larger than the sum of its proper divisors (509098).

667238 is a wasteful number, since it uses less digits than its factorization.

667238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359.

The product of its digits is 12096, while the sum is 32.

The square root of 667238 is about 816.8463747854. The cubic root of 667238 is about 87.3829946301.

The spelling of 667238 in words is "six hundred sixty-seven thousand, two hundred thirty-eight".