5489989 has 2 divisors, whose sum is σ = 5489990. Its totient is φ = 5489988.

The previous prime is 5489987. The next prime is 5489999. The reversal of 5489989 is 9899845.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4796100 + 693889 = 2190^2 + 833^2 .

It is a cyclic number.

It is not a de Polignac number, because 5489989 - 2¹ = 5489987 is a prime.

Together with 5489987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5489983) 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, 2744994 + 2744995.

It is an arithmetic number, because the mean of its divisors is an integer number (2744995).

Almost surely, 2^5489989 is an apocalyptic number.

It is an amenable number.

5489989 is a deficient number, since it is larger than the sum of its proper divisors (1).

5489989 is an equidigital number, since it uses as much as digits as its factorization.

5489989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 52.

The square root of 5489989 is about 2343.0725554280. The cubic root of 5489989 is about 176.4102537904.

The spelling of 5489989 in words is "five million, four hundred eighty-nine thousand, nine hundred eighty-nine".