99320399 has 2 divisors, whose sum is σ = 99320400. Its totient is φ = 99320398.

The previous prime is 99320387. The next prime is 99320483. The reversal of 99320399 is 99302399.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99320399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99320329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49660199 + 49660200.

It is an arithmetic number, because the mean of its divisors is an integer number (49660200).

Almost surely, 2^99320399 is an apocalyptic number.

99320399 is a deficient number, since it is larger than the sum of its proper divisors (1).

99320399 is an equidigital number, since it uses as much as digits as its factorization.

99320399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 118098, while the sum is 44.

The square root of 99320399 is about 9965.9620207986. The cubic root of 99320399 is about 463.1050162421.

The spelling of 99320399 in words is "ninety-nine million, three hundred twenty thousand, three hundred ninety-nine".