99394271 has 2 divisors, whose sum is σ = 99394272. Its totient is φ = 99394270.

The previous prime is 99394261. The next prime is 99394283. The reversal of 99394271 is 17249399.

It is a weak prime.

It is an emirp because it is prime and its reverse (17249399) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99394271 - 2¹⁸ = 99132127 is a prime.

It is a super-2 number, since 2×99394271² = 19758442215242882, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99394241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49697135 + 49697136.

It is an arithmetic number, because the mean of its divisors is an integer number (49697136).

Almost surely, 2^99394271 is an apocalyptic number.

99394271 is a deficient number, since it is larger than the sum of its proper divisors (1).

99394271 is an equidigital number, since it uses as much as digits as its factorization.

99394271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 44.

The square root of 99394271 is about 9969.6675471151. The cubic root of 99394271 is about 463.2198030531.

The spelling of 99394271 in words is "ninety-nine million, three hundred ninety-four thousand, two hundred seventy-one".