3931671 has 8 divisors (see below), whose sum is σ = 5257984. Its totient is φ = 2613240.

The previous prime is 3931667. The next prime is 3931687. The reversal of 3931671 is 1761393.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3931671 - 2² = 3931667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3931661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 685 + ... + 2886.

It is an arithmetic number, because the mean of its divisors is an integer number (657248).

Almost surely, 2^3931671 is an apocalyptic number.

3931671 is a deficient number, since it is larger than the sum of its proper divisors (1326313).

3931671 is a wasteful number, since it uses less digits than its factorization.

3931671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3941.

The product of its digits is 3402, while the sum is 30.

The square root of 3931671 is about 1982.8441693688. The cubic root of 3931671 is about 157.8310296381.

The spelling of 3931671 in words is "three million, nine hundred thirty-one thousand, six hundred seventy-one".