99227279 has 2 divisors, whose sum is σ = 99227280. Its totient is φ = 99227278.

The previous prime is 99227269. The next prime is 99227333. The reversal of 99227279 is 97272299.

It is a weak prime.

It is an emirp because it is prime and its reverse (97272299) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99227279 - 2⁴ = 99227263 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99227269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49613639 + 49613640.

It is an arithmetic number, because the mean of its divisors is an integer number (49613640).

Almost surely, 2^99227279 is an apocalyptic number.

99227279 is a deficient number, since it is larger than the sum of its proper divisors (1).

99227279 is an equidigital number, since it uses as much as digits as its factorization.

99227279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 47.

The square root of 99227279 is about 9961.2890230130. The cubic root of 99227279 is about 462.9602395934.

The spelling of 99227279 in words is "ninety-nine million, two hundred twenty-seven thousand, two hundred seventy-nine".