998847 has 24 divisors (see below), whose sum is σ = 1544400. Its totient is φ = 620928.

The previous prime is 998843. The next prime is 998857. The reversal of 998847 is 748899.

It is not a de Polignac number, because 998847 - 2² = 998843 is a prime.

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 998847.

It is not an unprimeable number, because it can be changed into a prime (998843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11179 + ... + 11267.

It is an arithmetic number, because the mean of its divisors is an integer number (64350).

2⁹⁹⁸⁸⁴⁷ is an apocalyptic number.

998847 is a deficient number, since it is larger than the sum of its proper divisors (545553).

998847 is a wasteful number, since it uses less digits than its factorization.

998847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 164 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 998847 is about 999.4233337280. The cubic root of 998847 is about 99.9615518860.

The spelling of 998847 in words is "nine hundred ninety-eight thousand, eight hundred forty-seven".