99324991 has 2 divisors, whose sum is σ = 99324992. Its totient is φ = 99324990.

The previous prime is 99324947. The next prime is 99325013. The reversal of 99324991 is 19942399.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99324991 - 2¹¹ = 99322943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99324691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49662495 + 49662496.

It is an arithmetic number, because the mean of its divisors is an integer number (49662496).

Almost surely, 2^99324991 is an apocalyptic number.

99324991 is a deficient number, since it is larger than the sum of its proper divisors (1).

99324991 is an equidigital number, since it uses as much as digits as its factorization.

99324991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 157464, while the sum is 46.

The square root of 99324991 is about 9966.1924023169. The cubic root of 99324991 is about 463.1121532300.

The spelling of 99324991 in words is "ninety-nine million, three hundred twenty-four thousand, nine hundred ninety-one".