998202871 has 2 divisors, whose sum is σ = 998202872. Its totient is φ = 998202870.

The previous prime is 998202869. The next prime is 998202899. The reversal of 998202871 is 178202899.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 998202871 - 2¹ = 998202869 is a prime.

Together with 998202869, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998200871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499101435 + 499101436.

It is an arithmetic number, because the mean of its divisors is an integer number (499101436).

Almost surely, 2^998202871 is an apocalyptic number.

998202871 is a deficient number, since it is larger than the sum of its proper divisors (1).

998202871 is an equidigital number, since it uses as much as digits as its factorization.

998202871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 998202871 is about 31594.3487193517. The cubic root of 998202871 is about 999.4005977888.

The spelling of 998202871 in words is "nine hundred ninety-eight million, two hundred two thousand, eight hundred seventy-one".