3958171 has 6 divisors (see below), whose sum is σ = 4604460. Its totient is φ = 3392676.

The previous prime is 3958169. The next prime is 3958177. The reversal of 3958171 is 1718593.

It is a happy number.

It is not a de Polignac number, because 3958171 - 2¹ = 3958169 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3958177) 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 in 5 ways as a sum of consecutive naturals, for example, 40341 + ... + 40438.

It is an arithmetic number, because the mean of its divisors is an integer number (767410).

Almost surely, 2^3958171 is an apocalyptic number.

3958171 is a deficient number, since it is larger than the sum of its proper divisors (646289).

3958171 is an equidigital number, since it uses as much as digits as its factorization.

3958171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80793 (or 80786 counting only the distinct ones).

The product of its digits is 7560, while the sum is 34.

The square root of 3958171 is about 1989.5152675966. The cubic root of 3958171 is about 158.1848368269.

The spelling of 3958171 in words is "three million, nine hundred fifty-eight thousand, one hundred seventy-one".