3172671217 has 2 divisors, whose sum is σ = 3172671218. Its totient is φ = 3172671216.

The previous prime is 3172671211. The next prime is 3172671241. The reversal of 3172671217 is 7121762713.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2148415201 + 1024256016 = 46351^2 + 32004^2 .

It is a cyclic number.

It is not a de Polignac number, because 3172671217 - 2³ = 3172671209 is a prime.

It is a super-2 number, since 2×3172671217² = 20131685302360522178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3172671211) 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, 1586335608 + 1586335609.

It is an arithmetic number, because the mean of its divisors is an integer number (1586335609).

Almost surely, 2^3172671217 is an apocalyptic number.

It is an amenable number.

3172671217 is a deficient number, since it is larger than the sum of its proper divisors (1).

3172671217 is an equidigital number, since it uses as much as digits as its factorization.

3172671217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24696, while the sum is 37.

The square root of 3172671217 is about 56326.4699497492. The cubic root of 3172671217 is about 1469.4055962928.

The spelling of 3172671217 in words is "three billion, one hundred seventy-two million, six hundred seventy-one thousand, two hundred seventeen".