9987323 has 2 divisors, whose sum is σ = 9987324. Its totient is φ = 9987322.

The previous prime is 9987317. The next prime is 9987389. The reversal of 9987323 is 3237899.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9987323 - 2²² = 5793019 is a prime.

It is not a weakly prime, because it can be changed into another prime (9986323) 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, 4993661 + 4993662.

It is an arithmetic number, because the mean of its divisors is an integer number (4993662).

Almost surely, 2^9987323 is an apocalyptic number.

9987323 is a deficient number, since it is larger than the sum of its proper divisors (1).

9987323 is an equidigital number, since it uses as much as digits as its factorization.

9987323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 41.

The square root of 9987323 is about 3160.2726148230. The cubic root of 9987323 is about 215.3523912774.

The spelling of 9987323 in words is "nine million, nine hundred eighty-seven thousand, three hundred twenty-three".