99611933 has 2 divisors, whose sum is σ = 99611934. Its totient is φ = 99611932.

The previous prime is 99611917. The next prime is 99611999. The reversal of 99611933 is 33911699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98942809 + 669124 = 9947^2 + 818^2 .

It is an emirp because it is prime and its reverse (33911699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99611933 - 2⁴ = 99611917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99611233) 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, 49805966 + 49805967.

It is an arithmetic number, because the mean of its divisors is an integer number (49805967).

Almost surely, 2^99611933 is an apocalyptic number.

It is an amenable number.

99611933 is a deficient number, since it is larger than the sum of its proper divisors (1).

99611933 is an equidigital number, since it uses as much as digits as its factorization.

99611933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39366, while the sum is 41.

The square root of 99611933 is about 9980.5777888858. The cubic root of 99611933 is about 463.5576891926.

The spelling of 99611933 in words is "ninety-nine million, six hundred eleven thousand, nine hundred thirty-three".