99743321 has 2 divisors, whose sum is σ = 99743322. Its totient is φ = 99743320.

The previous prime is 99743309. The next prime is 99743333. The reversal of 99743321 is 12334799.

It is a balanced prime because it is at equal distance from previous prime (99743309) and next prime (99743333).

It can be written as a sum of positive squares in only one way, i.e., 86862400 + 12880921 = 9320^2 + 3589^2 .

It is a cyclic number.

It is not a de Polignac number, because 99743321 - 2¹⁴ = 99726937 is a prime.

It is a Chen prime.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (99743351) 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, 49871660 + 49871661.

It is an arithmetic number, because the mean of its divisors is an integer number (49871661).

Almost surely, 2^99743321 is an apocalyptic number.

It is an amenable number.

99743321 is a deficient number, since it is larger than the sum of its proper divisors (1).

99743321 is an equidigital number, since it uses as much as digits as its factorization.

99743321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 38.

The square root of 99743321 is about 9987.1578039000. The cubic root of 99743321 is about 463.7614102970.

The spelling of 99743321 in words is "ninety-nine million, seven hundred forty-three thousand, three hundred twenty-one".