3982871 has 4 divisors (see below), whose sum is σ = 3992544. Its totient is φ = 3973200.

The previous prime is 3982819. The next prime is 3982877. The reversal of 3982871 is 1782893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1782893 = 7 ⋅254699.

It is a cyclic number.

It is not a de Polignac number, because 3982871 - 2¹⁰ = 3981847 is a prime.

It is a super-2 number, since 2×3982871² = 31726522805282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3982877) 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, 4190 + ... + 5051.

It is an arithmetic number, because the mean of its divisors is an integer number (998136).

Almost surely, 2^3982871 is an apocalyptic number.

3982871 is a deficient number, since it is larger than the sum of its proper divisors (9673).

3982871 is an equidigital number, since it uses as much as digits as its factorization.

3982871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9672.

The product of its digits is 24192, while the sum is 38.

The square root of 3982871 is about 1995.7131557416. The cubic root of 3982871 is about 158.5131927175.

The spelling of 3982871 in words is "three million, nine hundred eighty-two thousand, eight hundred seventy-one".