2827889 has 4 divisors (see below), whose sum is σ = 2833524. Its totient is φ = 2822256.

The previous prime is 2827823. The next prime is 2827901. The reversal of 2827889 is 9887282.

2827889 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, and also an emirpimes, since its reverse is a distinct semiprime: 9887282 = 2 ⋅4943641.

It can be written as a sum of positive squares in 2 ways, for example, as 1600225 + 1227664 = 1265^2 + 1108^2 .

It is a cyclic number.

It is not a de Polignac number, because 2827889 - 2⁸ = 2827633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2820889) 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 in 3 ways as a sum of consecutive naturals, for example, 1982 + ... + 3095.

It is an arithmetic number, because the mean of its divisors is an integer number (708381).

2^2827889 is an apocalyptic number.

It is an amenable number.

2827889 is a deficient number, since it is larger than the sum of its proper divisors (5635).

2827889 is an equidigital number, since it uses as much as digits as its factorization.

2827889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634.

The product of its digits is 129024, while the sum is 44.

The square root of 2827889 is about 1681.6328374529. The cubic root of 2827889 is about 141.4123869227.

The spelling of 2827889 in words is "two million, eight hundred twenty-seven thousand, eight hundred eighty-nine".