66670327 has 2 divisors, whose sum is σ = 66670328. Its totient is φ = 66670326.

The previous prime is 66670319. The next prime is 66670421. The reversal of 66670327 is 72307666.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66670327 - 2³ = 66670319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66670727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33335163 + 33335164.

It is an arithmetic number, because the mean of its divisors is an integer number (33335164).

Almost surely, 2^66670327 is an apocalyptic number.

66670327 is a deficient number, since it is larger than the sum of its proper divisors (1).

66670327 is an equidigital number, since it uses as much as digits as its factorization.

66670327 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 66670327 is about 8165.1899549245. The cubic root of 66670327 is about 405.4875538646.

The spelling of 66670327 in words is "sixty-six million, six hundred seventy thousand, three hundred twenty-seven".