99000817 has 2 divisors, whose sum is σ = 99000818. Its totient is φ = 99000816.

The previous prime is 99000793. The next prime is 99000851. The reversal of 99000817 is 71800099.

It is an a-pointer prime, because the next prime (99000851) can be obtained adding 99000817 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78216336 + 20784481 = 8844^2 + 4559^2 .

It is a cyclic number.

It is not a de Polignac number, because 99000817 - 2⁷ = 99000689 is a prime.

It is not a weakly prime, because it can be changed into another prime (99000857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49500408 + 49500409.

It is an arithmetic number, because the mean of its divisors is an integer number (49500409).

Almost surely, 2^99000817 is an apocalyptic number.

It is an amenable number.

99000817 is a deficient number, since it is larger than the sum of its proper divisors (1).

99000817 is an equidigital number, since it uses as much as digits as its factorization.

99000817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 99000817 is about 9949.9154267762. The cubic root of 99000817 is about 462.6077734721.

It can be divided in two parts, 990008 and 17, that added together give a square (990025 = 995²).

The spelling of 99000817 in words is "ninety-nine million, eight hundred seventeen", and thus it is an aban number.