998058 has 16 divisors (see below), whose sum is σ = 2005920. Its totient is φ = 331056.

The previous prime is 998029. The next prime is 998069. The reversal of 998058 is 850899.

It is a super-3 number, since 3×998058³ = 2982555920304033336, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2173 + ... + 2591.

It is an arithmetic number, because the mean of its divisors is an integer number (125370).

2⁹⁹⁸⁰⁵⁸ is an apocalyptic number.

998058 is an abundant number, since it is smaller than the sum of its proper divisors (1007862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

998058 is a wasteful number, since it uses less digits than its factorization.

998058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 998058 is about 999.0285281212. The cubic root of 998058 is about 99.9352247174.

The spelling of 998058 in words is "nine hundred ninety-eight thousand, fifty-eight".