99243923 has 2 divisors, whose sum is σ = 99243924. Its totient is φ = 99243922.

The previous prime is 99243917. The next prime is 99243967. The reversal of 99243923 is 32934299.

It is a weak prime.

It is an emirp because it is prime and its reverse (32934299) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99243923 - 2¹⁴ = 99227539 is a prime.

It is not a weakly prime, because it can be changed into another prime (99243323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49621961 + 49621962.

It is an arithmetic number, because the mean of its divisors is an integer number (49621962).

Almost surely, 2^99243923 is an apocalyptic number.

99243923 is a deficient number, since it is larger than the sum of its proper divisors (1).

99243923 is an equidigital number, since it uses as much as digits as its factorization.

99243923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 41.

The square root of 99243923 is about 9962.1244220297. The cubic root of 99243923 is about 462.9861231996.

The spelling of 99243923 in words is "ninety-nine million, two hundred forty-three thousand, nine hundred twenty-three".