998202911 has 2 divisors, whose sum is σ = 998202912. Its totient is φ = 998202910.

The previous prime is 998202899. The next prime is 998202929. The reversal of 998202911 is 119202899.

It is a weak prime.

It is an emirp because it is prime and its reverse (119202899) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998202911 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998207911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499101455 + 499101456.

It is an arithmetic number, because the mean of its divisors is an integer number (499101456).

Almost surely, 2^998202911 is an apocalyptic number.

998202911 is a deficient number, since it is larger than the sum of its proper divisors (1).

998202911 is an equidigital number, since it uses as much as digits as its factorization.

998202911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 998202911 is about 31594.3493523763. The cubic root of 998202911 is about 999.4006111381.

The spelling of 998202911 in words is "nine hundred ninety-eight million, two hundred two thousand, nine hundred eleven".