99443205 has 12 divisors (see below), whose sum is σ = 172368300. Its totient is φ = 53036352.

The previous prime is 99443177. The next prime is 99443221. The reversal of 99443205 is 50234499.

99443205 is a `hidden beast` number, since 9 + 9 + 443 + 205 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 75794436 + 23648769 = 8706^2 + 4863^2 .

It is not a de Polignac number, because 99443205 - 2⁸ = 99442949 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 99443205.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 1104880 + ... + 1104969.

It is an arithmetic number, because the mean of its divisors is an integer number (14364025).

Almost surely, 2^99443205 is an apocalyptic number.

It is an amenable number.

99443205 is a deficient number, since it is larger than the sum of its proper divisors (72925095).

99443205 is a wasteful number, since it uses less digits than its factorization.

99443205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209860 (or 2209857 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 99443205 is about 9972.1213891529. The cubic root of 99443205 is about 463.2958083694.

The spelling of 99443205 in words is "ninety-nine million, four hundred forty-three thousand, two hundred five".