9889123 has 2 divisors, whose sum is σ = 9889124. Its totient is φ = 9889122.

The previous prime is 9889081. The next prime is 9889147. The reversal of 9889123 is 3219889.

It is a strong prime.

It is an emirp because it is prime and its reverse (3219889) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9889123 is a prime.

It is equal to p₆₅₇₇₆₉ and since 9889123 and 657769 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (9889193) 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, 4944561 + 4944562.

It is an arithmetic number, because the mean of its divisors is an integer number (4944562).

Almost surely, 2^9889123 is an apocalyptic number.

9889123 is a deficient number, since it is larger than the sum of its proper divisors (1).

9889123 is an equidigital number, since it uses as much as digits as its factorization.

9889123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 40.

The square root of 9889123 is about 3144.6976007241. The cubic root of 9889123 is about 214.6442503351.

The spelling of 9889123 in words is "nine million, eight hundred eighty-nine thousand, one hundred twenty-three".