2871728 has 10 divisors (see below), whose sum is σ = 5564004. Its totient is φ = 1435856.

The previous prime is 2871721. The next prime is 2871731. The reversal of 2871728 is 8271782.

2871728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2871721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89726 + ... + 89757.

2^2871728 is an apocalyptic number.

It is an amenable number.

2871728 is a deficient number, since it is larger than the sum of its proper divisors (2692276).

2871728 is a wasteful number, since it uses less digits than its factorization.

2871728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179491 (or 179485 counting only the distinct ones).

The product of its digits is 12544, while the sum is 35.

The square root of 2871728 is about 1694.6173609402. The cubic root of 2871728 is about 142.1393857172.

The spelling of 2871728 in words is "two million, eight hundred seventy-one thousand, seven hundred twenty-eight".