99841439 has 2 divisors, whose sum is σ = 99841440. Its totient is φ = 99841438.

The previous prime is 99841397. The next prime is 99841471. The reversal of 99841439 is 93414899.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99841439 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 99841393 and 99841402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99841499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49920719 + 49920720.

It is an arithmetic number, because the mean of its divisors is an integer number (49920720).

Almost surely, 2^99841439 is an apocalyptic number.

99841439 is a deficient number, since it is larger than the sum of its proper divisors (1).

99841439 is an equidigital number, since it uses as much as digits as its factorization.

99841439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 47.

The square root of 99841439 is about 9992.0688048071. The cubic root of 99841439 is about 463.9134285947.

The spelling of 99841439 in words is "ninety-nine million, eight hundred forty-one thousand, four hundred thirty-nine".