2889389 has 2 divisors, whose sum is σ = 2889390. Its totient is φ = 2889388.

The previous prime is 2889373. The next prime is 2889427. The reversal of 2889389 is 9839882.

It is a happy number.

2889389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2788900 + 100489 = 1670^2 + 317^2 .

It is a cyclic number.

It is not a de Polignac number, because 2889389 - 2⁴ = 2889373 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2889319) 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, 1444694 + 1444695.

It is an arithmetic number, because the mean of its divisors is an integer number (1444695).

2^2889389 is an apocalyptic number.

It is an amenable number.

2889389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2889389 is an equidigital number, since it uses as much as digits as its factorization.

2889389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 47.

The square root of 2889389 is about 1699.8202846183. The cubic root of 2889389 is about 142.4301740596.

It can be divided in two parts, 28893 and 89, that added together give a palindrome (28982).

The spelling of 2889389 in words is "two million, eight hundred eighty-nine thousand, three hundred eighty-nine".