3872871 has 6 divisors (see below), whose sum is σ = 5594160. Its totient is φ = 2581908.

The previous prime is 3872851. The next prime is 3872873. The reversal of 3872871 is 1782783.

It is not a de Polignac number, because 3872871 - 2⁵ = 3872839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3872873) 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, 215151 + ... + 215168.

It is an arithmetic number, because the mean of its divisors is an integer number (932360).

Almost surely, 2^3872871 is an apocalyptic number.

3872871 is a deficient number, since it is larger than the sum of its proper divisors (1721289).

3872871 is a wasteful number, since it uses less digits than its factorization.

3872871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430325 (or 430322 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 3872871 is about 1967.9611276649. The cubic root of 3872871 is about 157.0402617610.

The spelling of 3872871 in words is "three million, eight hundred seventy-two thousand, eight hundred seventy-one".