99994229 has 2 divisors, whose sum is σ = 99994230. Its totient is φ = 99994228.

The previous prime is 99994211. The next prime is 99994231. The reversal of 99994229 is 92249999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99960004 + 34225 = 9998^2 + 185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99994229 is a prime.

Together with 99994231, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99994129) 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, 49997114 + 49997115.

It is an arithmetic number, because the mean of its divisors is an integer number (49997115).

Almost surely, 2^99994229 is an apocalyptic number.

It is an amenable number.

99994229 is a deficient number, since it is larger than the sum of its proper divisors (1).

99994229 is an equidigital number, since it uses as much as digits as its factorization.

99994229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 944784, while the sum is 53.

The square root of 99994229 is about 9999.7114458368. The cubic root of 99994229 is about 464.1499543198.

The spelling of 99994229 in words is "ninety-nine million, nine hundred ninety-four thousand, two hundred twenty-nine".