3171967 has 2 divisors, whose sum is σ = 3171968. Its totient is φ = 3171966.

The previous prime is 3171947. The next prime is 3171977. The reversal of 3171967 is 7691713.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3171967 - 2¹¹ = 3169919 is a prime.

It is a super-2 number, since 2×3171967² = 20122749298178, which contains 22 as substring.

3171967 is a lucky number.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3171947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1585983 + 1585984.

It is an arithmetic number, because the mean of its divisors is an integer number (1585984).

Almost surely, 2^3171967 is an apocalyptic number.

3171967 is a deficient number, since it is larger than the sum of its proper divisors (1).

3171967 is an equidigital number, since it uses as much as digits as its factorization.

3171967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7938, while the sum is 34.

The square root of 3171967 is about 1781.0016844461. The cubic root of 3171967 is about 146.9296870144.

The spelling of 3171967 in words is "three million, one hundred seventy-one thousand, nine hundred sixty-seven".