99009271 has 2 divisors, whose sum is σ = 99009272. Its totient is φ = 99009270.

The previous prime is 99009269. The next prime is 99009311. The reversal of 99009271 is 17290099.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99009271 - 2¹ = 99009269 is a prime.

Together with 99009269, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 99009271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99009371) 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, 49504635 + 49504636.

It is an arithmetic number, because the mean of its divisors is an integer number (49504636).

Almost surely, 2^99009271 is an apocalyptic number.

99009271 is a deficient number, since it is larger than the sum of its proper divisors (1).

99009271 is an equidigital number, since it uses as much as digits as its factorization.

99009271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 99009271 is about 9950.3402454388. The cubic root of 99009271 is about 462.6209409553.

The spelling of 99009271 in words is "ninety-nine million, nine thousand, two hundred seventy-one".