3931171 has 4 divisors (see below), whose sum is σ = 3936112. Its totient is φ = 3926232.

The previous prime is 3931159. The next prime is 3931177. The reversal of 3931171 is 1711393.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1711393 = 1061 ⋅1613.

It is a cyclic number.

It is not a de Polignac number, because 3931171 - 2¹³ = 3922979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3931177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 975 + ... + 2968.

It is an arithmetic number, because the mean of its divisors is an integer number (984028).

Almost surely, 2^3931171 is an apocalyptic number.

3931171 is a deficient number, since it is larger than the sum of its proper divisors (4941).

3931171 is an equidigital number, since it uses as much as digits as its factorization.

3931171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4940.

The product of its digits is 567, while the sum is 25.

The square root of 3931171 is about 1982.7180838435. The cubic root of 3931171 is about 157.8243387714.

The spelling of 3931171 in words is "three million, nine hundred thirty-one thousand, one hundred seventy-one".