98890 has 32 divisors (see below), whose sum is σ = 207360. Its totient is φ = 33600.

The previous prime is 98887. The next prime is 98893. The reversal of 98890 is 9889.

It is an interprime number because it is at equal distance from previous prime (98887) and next prime (98893).

It is an Ulam number.

It is a d-powerful number, because it can be written as 9⁴ + 8³ + 8⁵ + 9⁵ + 0 .

It is not an unprimeable number, because it can be changed into a prime (98893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3175 + ... + 3205.

It is an arithmetic number, because the mean of its divisors is an integer number (6480).

2⁹⁸⁸⁹⁰ is an apocalyptic number.

98890 is an abundant number, since it is smaller than the sum of its proper divisors (108470).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103680).

98890 is a wasteful number, since it uses less digits than its factorization.

98890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 98890 is about 314.4678043934. The cubic root of 98890 is about 46.2435101680.

The spelling of 98890 in words is "ninety-eight thousand, eight hundred ninety".