9489904423 has 2 divisors, whose sum is σ = 9489904424. Its totient is φ = 9489904422.

The previous prime is 9489904421. The next prime is 9489904531. The reversal of 9489904423 is 3244099849.

It is a happy number.

9489904423 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 is a cyclic number.

It is not a de Polignac number, because 9489904423 - 2¹ = 9489904421 is a prime.

Together with 9489904421, 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 (9489904421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4744952211 + 4744952212.

It is an arithmetic number, because the mean of its divisors is an integer number (4744952212).

Almost surely, 2^9489904423 is an apocalyptic number.

9489904423 is a deficient number, since it is larger than the sum of its proper divisors (1).

9489904423 is an equidigital number, since it uses as much as digits as its factorization.

9489904423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2239488, while the sum is 52.

The square root of 9489904423 is about 97416.1404645041. The cubic root of 9489904423 is about 2117.1612966870.

The spelling of 9489904423 in words is "nine billion, four hundred eighty-nine million, nine hundred four thousand, four hundred twenty-three".