99443273 has 2 divisors, whose sum is σ = 99443274. Its totient is φ = 99443272.

The previous prime is 99443221. The next prime is 99443293. The reversal of 99443273 is 37234499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93934864 + 5508409 = 9692^2 + 2347^2 .

It is an emirp because it is prime and its reverse (37234499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99443273 - 2¹⁰ = 99442249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99443273.

It is not a weakly prime, because it can be changed into another prime (99443293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49721636 + 49721637.

It is an arithmetic number, because the mean of its divisors is an integer number (49721637).

Almost surely, 2^99443273 is an apocalyptic number.

It is an amenable number.

99443273 is a deficient number, since it is larger than the sum of its proper divisors (1).

99443273 is an equidigital number, since it uses as much as digits as its factorization.

99443273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 41.

The square root of 99443273 is about 9972.1247986575. The cubic root of 99443273 is about 463.2959139711.

The spelling of 99443273 in words is "ninety-nine million, four hundred forty-three thousand, two hundred seventy-three".