99442243 has 2 divisors, whose sum is σ = 99442244. Its totient is φ = 99442242.

The previous prime is 99442241. The next prime is 99442249. The reversal of 99442243 is 34224499.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99442243 - 2¹ = 99442241 is a prime.

It is a super-3 number, since 3×99442243³ (a number of 25 digits) contains 333 as substring.

Together with 99442241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (99442241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49721121 + 49721122.

It is an arithmetic number, because the mean of its divisors is an integer number (49721122).

Almost surely, 2^99442243 is an apocalyptic number.

99442243 is a deficient number, since it is larger than the sum of its proper divisors (1).

99442243 is an equidigital number, since it uses as much as digits as its factorization.

99442243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 37.

The square root of 99442243 is about 9972.0731545652. The cubic root of 99442243 is about 463.2943144111.

The spelling of 99442243 in words is "ninety-nine million, four hundred forty-two thousand, two hundred forty-three".