99420833 has 2 divisors, whose sum is σ = 99420834. Its totient is φ = 99420832.

The previous prime is 99420823. The next prime is 99420847. The reversal of 99420833 is 33802499.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83484769 + 15936064 = 9137^2 + 3992^2 .

It is a cyclic number.

It is not a de Polignac number, because 99420833 - 2⁸ = 99420577 is a prime.

It is not a weakly prime, because it can be changed into another prime (99420823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49710416 + 49710417.

It is an arithmetic number, because the mean of its divisors is an integer number (49710417).

Almost surely, 2^99420833 is an apocalyptic number.

It is an amenable number.

99420833 is a deficient number, since it is larger than the sum of its proper divisors (1).

99420833 is an equidigital number, since it uses as much as digits as its factorization.

99420833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 99420833 is about 9970.9995988366. Note that the first 3 decimals coincide. The cubic root of 99420833 is about 463.2610628039.

The spelling of 99420833 in words is "ninety-nine million, four hundred twenty thousand, eight hundred thirty-three".