2889638 has 4 divisors (see below), whose sum is σ = 4334460. Its totient is φ = 1444818.

The previous prime is 2889637. The next prime is 2889641. The reversal of 2889638 is 8369882.

2889638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2889637) 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, 722408 + ... + 722411.

It is an arithmetic number, because the mean of its divisors is an integer number (1083615).

2^2889638 is an apocalyptic number.

2889638 is a deficient number, since it is larger than the sum of its proper divisors (1444822).

2889638 is a wasteful number, since it uses less digits than its factorization.

2889638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444821.

The product of its digits is 165888, while the sum is 44.

The square root of 2889638 is about 1699.8935260774. The cubic root of 2889638 is about 142.4342653623.

The spelling of 2889638 in words is "two million, eight hundred eighty-nine thousand, six hundred thirty-eight".