998110271 has 2 divisors, whose sum is σ = 998110272. Its totient is φ = 998110270.

The previous prime is 998110259. The next prime is 998110297. The reversal of 998110271 is 172011899.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 998110271 - 2⁶ = 998110207 is a prime.

It is a super-2 number, since 2×998110271² = 1992448226151386882, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998110571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499055135 + 499055136.

It is an arithmetic number, because the mean of its divisors is an integer number (499055136).

Almost surely, 2^998110271 is an apocalyptic number.

998110271 is a deficient number, since it is larger than the sum of its proper divisors (1).

998110271 is an equidigital number, since it uses as much as digits as its factorization.

998110271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 38.

The square root of 998110271 is about 31592.8832334119. The cubic root of 998110271 is about 999.3696931301.

The spelling of 998110271 in words is "nine hundred ninety-eight million, one hundred ten thousand, two hundred seventy-one".