2989321 has 2 divisors, whose sum is σ = 2989322. Its totient is φ = 2989320.

The previous prime is 2989319. The next prime is 2989367. The reversal of 2989321 is 1239892.

2989321 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., 2758921 + 230400 = 1661^2 + 480^2 .

It is a cyclic number.

It is not a de Polignac number, because 2989321 - 2¹ = 2989319 is a prime.

Together with 2989319, it forms a pair of twin primes.

2989321 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2989391) 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, 1494660 + 1494661.

It is an arithmetic number, because the mean of its divisors is an integer number (1494661).

2^2989321 is an apocalyptic number.

It is an amenable number.

2989321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2989321 is an equidigital number, since it uses as much as digits as its factorization.

2989321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 34.

The square root of 2989321 is about 1728.9652975118. The cubic root of 2989321 is about 144.0536226479.

The spelling of 2989321 in words is "two million, nine hundred eighty-nine thousand, three hundred twenty-one".