3995660171 has 2 divisors, whose sum is σ = 3995660172. Its totient is φ = 3995660170.

The previous prime is 3995660159. The next prime is 3995660177. The reversal of 3995660171 is 1710665993.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3995660171 - 2¹⁴ = 3995643787 is a prime.

It is not a weakly prime, because it can be changed into another prime (3995660177) 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, 1997830085 + 1997830086.

It is an arithmetic number, because the mean of its divisors is an integer number (1997830086).

Almost surely, 2^3995660171 is an apocalyptic number.

3995660171 is a deficient number, since it is larger than the sum of its proper divisors (1).

3995660171 is an equidigital number, since it uses as much as digits as its factorization.

3995660171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 306180, while the sum is 47.

The square root of 3995660171 is about 63211.2345315293. The cubic root of 3995660171 is about 1586.8267567962.

The spelling of 3995660171 in words is "three billion, nine hundred ninety-five million, six hundred sixty thousand, one hundred seventy-one".