98818 has 4 divisors (see below), whose sum is σ = 148230. Its totient is φ = 49408.

The previous prime is 98809. The next prime is 98837. The reversal of 98818 is 81889.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81889 = 17 ⋅4817.

It can be written as a sum of positive squares in only one way, i.e., 88209 + 10609 = 297^2 + 103^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24703 + ... + 24706.

2⁹⁸⁸¹⁸ is an apocalyptic number.

98818 is a deficient number, since it is larger than the sum of its proper divisors (49412).

98818 is a wasteful number, since it uses less digits than its factorization.

98818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49411.

The product of its digits is 4608, while the sum is 34.

The square root of 98818 is about 314.3533044204. The cubic root of 98818 is about 46.2322844252.

It can be divided in two parts, 9881 and 8, that added together give a palindrome (9889).

The spelling of 98818 in words is "ninety-eight thousand, eight hundred eighteen".