99281339 has 2 divisors, whose sum is σ = 99281340. Its totient is φ = 99281338.

The previous prime is 99281321. The next prime is 99281383. The reversal of 99281339 is 93318299.

It is an a-pointer prime, because the next prime (99281383) can be obtained adding 99281339 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99281339 - 2²⁰ = 98232763 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99281339.

It is not a weakly prime, because it can be changed into another prime (99281389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49640669 + 49640670.

It is an arithmetic number, because the mean of its divisors is an integer number (49640670).

Almost surely, 2^99281339 is an apocalyptic number.

99281339 is a deficient number, since it is larger than the sum of its proper divisors (1).

99281339 is an equidigital number, since it uses as much as digits as its factorization.

99281339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 44.

The square root of 99281339 is about 9964.0021577677. The cubic root of 99281339 is about 463.0442994309.

The spelling of 99281339 in words is "ninety-nine million, two hundred eighty-one thousand, three hundred thirty-nine".