2871996 has 12 divisors (see below), whose sum is σ = 6701352. Its totient is φ = 957328.

The previous prime is 2871991. The next prime is 2872003. The reversal of 2871996 is 6991782.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2871996² = 16496722048032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2871991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119655 + ... + 119678.

It is an arithmetic number, because the mean of its divisors is an integer number (558446).

2^2871996 is an apocalyptic number.

It is an amenable number.

2871996 is an abundant number, since it is smaller than the sum of its proper divisors (3829356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2871996 is a wasteful number, since it uses less digits than its factorization.

2871996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239340 (or 239338 counting only the distinct ones).

The product of its digits is 54432, while the sum is 42.

The square root of 2871996 is about 1694.6964329932. The cubic root of 2871996 is about 142.1438072328.

The spelling of 2871996 in words is "two million, eight hundred seventy-one thousand, nine hundred ninety-six".