99220843 has 2 divisors, whose sum is σ = 99220844. Its totient is φ = 99220842.

The previous prime is 99220829. The next prime is 99220853. The reversal of 99220843 is 34802299.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99220843 - 2⁵ = 99220811 is a prime.

It is not a weakly prime, because it can be changed into another prime (99220853) 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, 49610421 + 49610422.

It is an arithmetic number, because the mean of its divisors is an integer number (49610422).

Almost surely, 2^99220843 is an apocalyptic number.

99220843 is a deficient number, since it is larger than the sum of its proper divisors (1).

99220843 is an equidigital number, since it uses as much as digits as its factorization.

99220843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 99220843 is about 9960.9659672142. The cubic root of 99220843 is about 462.9502299920.

The spelling of 99220843 in words is "ninety-nine million, two hundred twenty thousand, eight hundred forty-three".