99943339 has 2 divisors, whose sum is σ = 99943340. Its totient is φ = 99943338.

The previous prime is 99943331. The next prime is 99943369. The reversal of 99943339 is 93334999.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (93334999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99943339 - 2³ = 99943331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99943292 and 99943301.

It is not a weakly prime, because it can be changed into another prime (99943331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49971669 + 49971670.

It is an arithmetic number, because the mean of its divisors is an integer number (49971670).

Almost surely, 2^99943339 is an apocalyptic number.

99943339 is a deficient number, since it is larger than the sum of its proper divisors (1).

99943339 is an equidigital number, since it uses as much as digits as its factorization.

99943339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 708588, while the sum is 49.

The square root of 99943339 is about 9997.1665485777. The cubic root of 99943339 is about 464.0712011103.

The spelling of 99943339 in words is "ninety-nine million, nine hundred forty-three thousand, three hundred thirty-nine".