2989447 has 2 divisors, whose sum is σ = 2989448. Its totient is φ = 2989446.

The previous prime is 2989429. The next prime is 2989451. The reversal of 2989447 is 7449892.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2989447 - 2⁷ = 2989319 is a prime.

It is a plaindrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2989417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1494723 + 1494724.

It is an arithmetic number, because the mean of its divisors is an integer number (1494724).

2^2989447 is an apocalyptic number.

2989447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2989447 is an equidigital number, since it uses as much as digits as its factorization.

2989447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 2989447 is about 1729.0017351061. The cubic root of 2989447 is about 144.0556465747.

The spelling of 2989447 in words is "two million, nine hundred eighty-nine thousand, four hundred forty-seven".