667171283 has 2 divisors, whose sum is σ = 667171284. Its totient is φ = 667171282.

The previous prime is 667171237. The next prime is 667171289. The reversal of 667171283 is 382171766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 667171283 - 2⁸ = 667171027 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 667171283.

It is not a weakly prime, because it can be changed into another prime (667171289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333585641 + 333585642.

It is an arithmetic number, because the mean of its divisors is an integer number (333585642).

Almost surely, 2^667171283 is an apocalyptic number.

667171283 is a deficient number, since it is larger than the sum of its proper divisors (1).

667171283 is an equidigital number, since it uses as much as digits as its factorization.

667171283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 41.

The square root of 667171283 is about 25829.6589795529. The cubic root of 667171283 is about 873.8008206335.

The spelling of 667171283 in words is "six hundred sixty-seven million, one hundred seventy-one thousand, two hundred eighty-three".