99023 has 2 divisors, whose sum is σ = 99024. Its totient is φ = 99022.

The previous prime is 99017. The next prime is 99041. The reversal of 99023 is 32099.

It is a weak prime.

It is an emirp because it is prime and its reverse (32099) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99023 - 2¹⁶ = 33487 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49511 + 49512.

It is an arithmetic number, because the mean of its divisors is an integer number (49512).

2⁹⁹⁰²³ is an apocalyptic number.

99023 is a deficient number, since it is larger than the sum of its proper divisors (1).

99023 is an equidigital number, since it uses as much as digits as its factorization.

99023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 99023 is about 314.6792017277. The cubic root of 99023 is about 46.2642322890.

The spelling of 99023 in words is "ninety-nine thousand, twenty-three".