99984893 has 2 divisors, whose sum is σ = 99984894. Its totient is φ = 99984892.

The previous prime is 99984883. The next prime is 99984919. The reversal of 99984893 is 39848999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99640324 + 344569 = 9982^2 + 587^2 .

It is an emirp because it is prime and its reverse (39848999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99984893 - 2⁴ = 99984877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99984823) 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, 49992446 + 49992447.

It is an arithmetic number, because the mean of its divisors is an integer number (49992447).

Almost surely, 2^99984893 is an apocalyptic number.

It is an amenable number.

99984893 is a deficient number, since it is larger than the sum of its proper divisors (1).

99984893 is an equidigital number, since it uses as much as digits as its factorization.

99984893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5038848, while the sum is 59.

The square root of 99984893 is about 9999.2446214702. The cubic root of 99984893 is about 464.1355086900.

The spelling of 99984893 in words is "ninety-nine million, nine hundred eighty-four thousand, eight hundred ninety-three".