3881271 has 4 divisors (see below), whose sum is σ = 5175032. Its totient is φ = 2587512.

The previous prime is 3881249. The next prime is 3881291. The reversal of 3881271 is 1721883.

It is a happy number.

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

It is not a de Polignac number, because 3881271 - 2⁵ = 3881239 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3881221) 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, 646876 + ... + 646881.

It is an arithmetic number, because the mean of its divisors is an integer number (1293758).

Almost surely, 2^3881271 is an apocalyptic number.

3881271 is a deficient number, since it is larger than the sum of its proper divisors (1293761).

3881271 is a wasteful number, since it uses less digits than its factorization.

3881271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293760.

The product of its digits is 2688, while the sum is 30.

The square root of 3881271 is about 1970.0941601863. The cubic root of 3881271 is about 157.1537164082.

It can be divided in two parts, 38812 and 71, that added together give a palindrome (38883).

The spelling of 3881271 in words is "three million, eight hundred eighty-one thousand, two hundred seventy-one".