9973489 has 2 divisors, whose sum is σ = 9973490. Its totient is φ = 9973488.

The previous prime is 9973417. The next prime is 9973507. The reversal of 9973489 is 9843799.

9973489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9199089 + 774400 = 3033^2 + 880^2 .

It is a cyclic number.

It is not a de Polignac number, because 9973489 - 2¹¹ = 9971441 is a prime.

It is not a weakly prime, because it can be changed into another prime (9973409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4986744 + 4986745.

It is an arithmetic number, because the mean of its divisors is an integer number (4986745).

Almost surely, 2^9973489 is an apocalyptic number.

It is an amenable number.

9973489 is a deficient number, since it is larger than the sum of its proper divisors (1).

9973489 is an equidigital number, since it uses as much as digits as its factorization.

9973489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 49.

The square root of 9973489 is about 3158.0831211354. The cubic root of 9973489 is about 215.2529131161.

The spelling of 9973489 in words is "nine million, nine hundred seventy-three thousand, four hundred eighty-nine".