998271 has 8 divisors (see below), whose sum is σ = 1478960. Its totient is φ = 665496.

The previous prime is 998243. The next prime is 998273. The reversal of 998271 is 172899.

It is a happy number.

It is not a de Polignac number, because 998271 - 2¹⁰ = 997247 is a prime.

It is a Duffinian number.

998271 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 998271.

It is not an unprimeable number, because it can be changed into a prime (998273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18460 + ... + 18513.

It is an arithmetic number, because the mean of its divisors is an integer number (184870).

2⁹⁹⁸²⁷¹ is an apocalyptic number.

998271 is a deficient number, since it is larger than the sum of its proper divisors (480689).

998271 is a wasteful number, since it uses less digits than its factorization.

998271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36982 (or 36976 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 998271 is about 999.1351259965. The cubic root of 998271 is about 99.9423334187.

The spelling of 998271 in words is "nine hundred ninety-eight thousand, two hundred seventy-one".