998085 has 32 divisors (see below), whose sum is σ = 1824768. Its totient is φ = 461120.

The previous prime is 998083. The next prime is 998111. The reversal of 998085 is 580899.

998085 = T₇₀ + T₇₁ + ... + T₁₈₄.

It is not a de Polignac number, because 998085 - 2¹ = 998083 is a prime.

It is a Curzon 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 998085.

It is not an unprimeable number, because it can be changed into a prime (998083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3664 + ... + 3926.

It is an arithmetic number, because the mean of its divisors is an integer number (57024).

2⁹⁹⁸⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

998085 is a deficient number, since it is larger than the sum of its proper divisors (826683).

998085 is a wasteful number, since it uses less digits than its factorization.

998085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305.

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

The square root of 998085 is about 999.0420411574. The cubic root of 998085 is about 99.9361258763.

The spelling of 998085 in words is "nine hundred ninety-eight thousand, eighty-five".