3969622171 has 2 divisors, whose sum is σ = 3969622172. Its totient is φ = 3969622170.

The previous prime is 3969622169. The next prime is 3969622193. The reversal of 3969622171 is 1712269693.

It is a happy number.

3969622171 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3969622171 - 2¹ = 3969622169 is a prime.

Together with 3969622169, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3969692171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1984811085 + 1984811086.

It is an arithmetic number, because the mean of its divisors is an integer number (1984811086).

Almost surely, 2^3969622171 is an apocalyptic number.

3969622171 is a deficient number, since it is larger than the sum of its proper divisors (1).

3969622171 is an equidigital number, since it uses as much as digits as its factorization.

3969622171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 46.

The square root of 3969622171 is about 63004.9376715825. The cubic root of 3969622171 is about 1583.3723529541.

The spelling of 3969622171 in words is "three billion, nine hundred sixty-nine million, six hundred twenty-two thousand, one hundred seventy-one".