3905171 has 4 divisors (see below), whose sum is σ = 3915600. Its totient is φ = 3894744.

The previous prime is 3905149. The next prime is 3905173. The reversal of 3905171 is 1715093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1715093 = 223 ⋅7691.

It is a cyclic number.

It is not a de Polignac number, because 3905171 - 2⁶ = 3905107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3905171.

It is not an unprimeable number, because it can be changed into a prime (3905173) 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 3 ways as a sum of consecutive naturals, for example, 4631 + ... + 5408.

It is an arithmetic number, because the mean of its divisors is an integer number (978900).

Almost surely, 2^3905171 is an apocalyptic number.

3905171 is a deficient number, since it is larger than the sum of its proper divisors (10429).

3905171 is a wasteful number, since it uses less digits than its factorization.

3905171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10428.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 3905171 is about 1976.1505509449. The cubic root of 3905171 is about 157.4756290502.

The spelling of 3905171 in words is "three million, nine hundred five thousand, one hundred seventy-one".