3928171 has 4 divisors (see below), whose sum is σ = 4230352. Its totient is φ = 3625992.

The previous prime is 3928163. The next prime is 3928189. The reversal of 3928171 is 1718293.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3928171 - 2³ = 3928163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3928151) 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, 151071 + ... + 151096.

It is an arithmetic number, because the mean of its divisors is an integer number (1057588).

Almost surely, 2^3928171 is an apocalyptic number.

3928171 is a deficient number, since it is larger than the sum of its proper divisors (302181).

3928171 is a wasteful number, since it uses less digits than its factorization.

3928171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302180.

The product of its digits is 3024, while the sum is 31.

The square root of 3928171 is about 1981.9614022478. The cubic root of 3928171 is about 157.7841816521.

The spelling of 3928171 in words is "three million, nine hundred twenty-eight thousand, one hundred seventy-one".