99929449 has 2 divisors, whose sum is σ = 99929450. Its totient is φ = 99929448.

The previous prime is 99929437. The next prime is 99929477. The reversal of 99929449 is 94492999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95413824 + 4515625 = 9768^2 + 2125^2 .

It is an emirp because it is prime and its reverse (94492999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99929449 - 2⁹ = 99928937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99929449.

It is not a weakly prime, because it can be changed into another prime (99929429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49964724 + 49964725.

It is an arithmetic number, because the mean of its divisors is an integer number (49964725).

Almost surely, 2^99929449 is an apocalyptic number.

It is an amenable number.

99929449 is a deficient number, since it is larger than the sum of its proper divisors (1).

99929449 is an equidigital number, since it uses as much as digits as its factorization.

99929449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1889568, while the sum is 55.

The square root of 99929449 is about 9996.4718276000. The cubic root of 99929449 is about 464.0497014363.

The spelling of 99929449 in words is "ninety-nine million, nine hundred twenty-nine thousand, four hundred forty-nine".