2897872 has 20 divisors (see below), whose sum is σ = 5659360. Its totient is φ = 1437408.

The previous prime is 2897833. The next prime is 2897887. The reversal of 2897872 is 2787982.

2897872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1573 + ... + 2875.

It is an arithmetic number, because the mean of its divisors is an integer number (282968).

2^2897872 is an apocalyptic number.

It is an amenable number.

2897872 is a deficient number, since it is larger than the sum of its proper divisors (2761488).

2897872 is a wasteful number, since it uses less digits than its factorization.

2897872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450 (or 1444 counting only the distinct ones).

The product of its digits is 112896, while the sum is 43.

The square root of 2897872 is about 1702.3137196181. The cubic root of 2897872 is about 142.5694254915.

The spelling of 2897872 in words is "two million, eight hundred ninety-seven thousand, eight hundred seventy-two".