9449989 has 2 divisors, whose sum is σ = 9449990. Its totient is φ = 9449988.

The previous prime is 9449983. The next prime is 9450013. The reversal of 9449989 is 9899449.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9333025 + 116964 = 3055^2 + 342^2 .

It is a cyclic number.

It is not a de Polignac number, because 9449989 - 2⁹ = 9449477 is a prime.

9449989 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9449983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4724994 + 4724995.

It is an arithmetic number, because the mean of its divisors is an integer number (4724995).

Almost surely, 2^9449989 is an apocalyptic number.

It is an amenable number.

9449989 is a deficient number, since it is larger than the sum of its proper divisors (1).

9449989 is an equidigital number, since it uses as much as digits as its factorization.

9449989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 52.

The square root of 9449989 is about 3074.0834406372. The cubic root of 9449989 is about 211.4188799299.

The spelling of 9449989 in words is "nine million, four hundred forty-nine thousand, nine hundred eighty-nine".