2871664 has 10 divisors (see below), whose sum is σ = 5563880. Its totient is φ = 1435824.

The previous prime is 2871643. The next prime is 2871689. The reversal of 2871664 is 4661782.

2871664 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 as a sum of consecutive naturals, namely, 89724 + ... + 89755.

It is an arithmetic number, because the mean of its divisors is an integer number (556388).

2^2871664 is an apocalyptic number.

It is an amenable number.

2871664 is a deficient number, since it is larger than the sum of its proper divisors (2692216).

2871664 is a wasteful number, since it uses less digits than its factorization.

2871664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179487 (or 179481 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 2871664 is about 1694.5984775161. The cubic root of 2871664 is about 142.1383297922.

The spelling of 2871664 in words is "two million, eight hundred seventy-one thousand, six hundred sixty-four".