666067 has 2 divisors, whose sum is σ = 666068. Its totient is φ = 666066.

The previous prime is 666041. The next prime is 666073. The reversal of 666067 is 760666.

It is a happy number.

666067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 666067 - 2¹¹ = 664019 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (666167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333033 + 333034.

It is an arithmetic number, because the mean of its divisors is an integer number (333034).

2⁶⁶⁶⁰⁶⁷ is an apocalyptic number.

666067 is a deficient number, since it is larger than the sum of its proper divisors (1).

666067 is an equidigital number, since it uses as much as digits as its factorization.

666067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 666067 is about 816.1292789748. The cubic root of 666067 is about 87.3318457619.

The spelling of 666067 in words is "six hundred sixty-six thousand, sixty-seven".