99647803 has 2 divisors, whose sum is σ = 99647804. Its totient is φ = 99647802.

The previous prime is 99647783. The next prime is 99647819. The reversal of 99647803 is 30874699.

It is a strong prime.

It is an emirp because it is prime and its reverse (30874699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99647803 - 2²⁵ = 66093371 is a prime.

It is not a weakly prime, because it can be changed into another prime (99647833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49823901 + 49823902.

It is an arithmetic number, because the mean of its divisors is an integer number (49823902).

Almost surely, 2^99647803 is an apocalyptic number.

99647803 is a deficient number, since it is larger than the sum of its proper divisors (1).

99647803 is an equidigital number, since it uses as much as digits as its factorization.

99647803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 99647803 is about 9982.3746172942. The cubic root of 99647803 is about 463.6133244910.

The spelling of 99647803 in words is "ninety-nine million, six hundred forty-seven thousand, eight hundred three".