99017771 has 2 divisors, whose sum is σ = 99017772. Its totient is φ = 99017770.

The previous prime is 99017717. The next prime is 99017819. The reversal of 99017771 is 17771099.

Together with previous prime (99017717) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99017771 - 2¹⁰ = 99016747 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99017071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49508885 + 49508886.

It is an arithmetic number, because the mean of its divisors is an integer number (49508886).

Almost surely, 2^99017771 is an apocalyptic number.

99017771 is a deficient number, since it is larger than the sum of its proper divisors (1).

99017771 is an equidigital number, since it uses as much as digits as its factorization.

99017771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27783, while the sum is 41.

The square root of 99017771 is about 9950.7673573449. The cubic root of 99017771 is about 462.6341793300.

The spelling of 99017771 in words is "ninety-nine million, seventeen thousand, seven hundred seventy-one".