998843803 has 2 divisors, whose sum is σ = 998843804. Its totient is φ = 998843802.

The previous prime is 998843771. The next prime is 998843831. The reversal of 998843803 is 308348899.

It is a strong prime.

It is an emirp because it is prime and its reverse (308348899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 998843803 - 2⁵ = 998843771 is a prime.

It is not a weakly prime, because it can be changed into another prime (998843893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499421901 + 499421902.

It is an arithmetic number, because the mean of its divisors is an integer number (499421902).

Almost surely, 2^998843803 is an apocalyptic number.

998843803 is a deficient number, since it is larger than the sum of its proper divisors (1).

998843803 is an equidigital number, since it uses as much as digits as its factorization.

998843803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 998843803 is about 31604.4902347752. The cubic root of 998843803 is about 999.6144523721.

The spelling of 998843803 in words is "nine hundred ninety-eight million, eight hundred forty-three thousand, eight hundred three".