998471 has 2 divisors, whose sum is σ = 998472. Its totient is φ = 998470.

The previous prime is 998443. The next prime is 998497. The reversal of 998471 is 174899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 998471 - 2¹⁴ = 982087 is a prime.

It is a super-3 number, since 3×998471³ = 2986260029845323333, which contains 333 as substring.

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 998471.

It is not a weakly prime, because it can be changed into another prime (998411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499235 + 499236.

It is an arithmetic number, because the mean of its divisors is an integer number (499236).

2⁹⁹⁸⁴⁷¹ is an apocalyptic number.

998471 is a deficient number, since it is larger than the sum of its proper divisors (1).

998471 is an equidigital number, since it uses as much as digits as its factorization.

998471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 38.

The square root of 998471 is about 999.2352075463. The cubic root of 998471 is about 99.9490073352.

The spelling of 998471 in words is "nine hundred ninety-eight thousand, four hundred seventy-one".