3980871 has 6 divisors (see below), whose sum is σ = 5750160. Its totient is φ = 2653908.

The previous prime is 3980857. The next prime is 3980887. The reversal of 3980871 is 1780893.

It is not a de Polignac number, because 3980871 - 2⁹ = 3980359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3980831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 221151 + ... + 221168.

It is an arithmetic number, because the mean of its divisors is an integer number (958360).

Almost surely, 2^3980871 is an apocalyptic number.

3980871 is a deficient number, since it is larger than the sum of its proper divisors (1769289).

3980871 is a wasteful number, since it uses less digits than its factorization.

3980871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442325 (or 442322 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 3980871 is about 1995.2120188090. The cubic root of 3980871 is about 158.4866557909.

It can be divided in two parts, 3980 and 871, that added together give a triangular number (4851 = T₉₈).

The spelling of 3980871 in words is "three million, nine hundred eighty thousand, eight hundred seventy-one".