9867239323 has 2 divisors, whose sum is σ = 9867239324. Its totient is φ = 9867239322.

The previous prime is 9867239321. The next prime is 9867239329. The reversal of 9867239323 is 3239327689.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9867239323 - 2¹ = 9867239321 is a prime.

Together with 9867239321, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9867239321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4933619661 + 4933619662.

It is an arithmetic number, because the mean of its divisors is an integer number (4933619662).

Almost surely, 2^9867239323 is an apocalyptic number.

9867239323 is a deficient number, since it is larger than the sum of its proper divisors (1).

9867239323 is an equidigital number, since it uses as much as digits as its factorization.

9867239323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 52.

The square root of 9867239323 is about 99333.9786930937. The cubic root of 9867239323 is about 2144.8580438292.

The spelling of 9867239323 in words is "nine billion, eight hundred sixty-seven million, two hundred thirty-nine thousand, three hundred twenty-three".