99299279 has 2 divisors, whose sum is σ = 99299280. Its totient is φ = 99299278.

The previous prime is 99299243. The next prime is 99299281. The reversal of 99299279 is 97299299.

It is a strong prime.

It is an emirp because it is prime and its reverse (97299299) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99299279 is a prime.

It is a Sophie Germain prime.

Together with 99299281, it forms a pair of twin primes.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 99299279 parts by 14092 straight cuts.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99292279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49649639 + 49649640.

It is an arithmetic number, because the mean of its divisors is an integer number (49649640).

Almost surely, 2^99299279 is an apocalyptic number.

99299279 is a deficient number, since it is larger than the sum of its proper divisors (1).

99299279 is an equidigital number, since it uses as much as digits as its factorization.

99299279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1653372, while the sum is 56.

The square root of 99299279 is about 9964.9023577755. The cubic root of 99299279 is about 463.0721882383.

The spelling of 99299279 in words is "ninety-nine million, two hundred ninety-nine thousand, two hundred seventy-nine".