99921883 has 2 divisors, whose sum is σ = 99921884. Its totient is φ = 99921882.

The previous prime is 99921881. The next prime is 99921911. The reversal of 99921883 is 38812999.

It is a weak prime.

It is an emirp because it is prime and its reverse (38812999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99921883 - 2¹ = 99921881 is a prime.

Together with 99921881, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (99921881) 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, 49960941 + 49960942.

It is an arithmetic number, because the mean of its divisors is an integer number (49960942).

Almost surely, 2^99921883 is an apocalyptic number.

99921883 is a deficient number, since it is larger than the sum of its proper divisors (1).

99921883 is an equidigital number, since it uses as much as digits as its factorization.

99921883 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 49.

The square root of 99921883 is about 9996.0933869187. The cubic root of 99921883 is about 464.0379895446.

The spelling of 99921883 in words is "ninety-nine million, nine hundred twenty-one thousand, eight hundred eighty-three".