98811 has 6 divisors (see below), whose sum is σ = 142740. Its totient is φ = 65868.

The previous prime is 98809. The next prime is 98837. The reversal of 98811 is 11889.

It is not a de Polignac number, because 98811 - 2¹ = 98809 is a prime.

It is a super-2 number, since 2×98811² = 19527227442, which contains 22 as substring.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (98801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5481 + ... + 5498.

It is an arithmetic number, because the mean of its divisors is an integer number (23790).

2⁹⁸⁸¹¹ is an apocalyptic number.

98811 is a deficient number, since it is larger than the sum of its proper divisors (43929).

98811 is a wasteful number, since it uses less digits than its factorization.

98811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10985 (or 10982 counting only the distinct ones).

The product of its digits is 576, while the sum is 27.

The square root of 98811 is about 314.3421702540. The cubic root of 98811 is about 46.2311927428.

It can be divided in two parts, 988 and 11, that added together give a palindrome (999).

The spelling of 98811 in words is "ninety-eight thousand, eight hundred eleven".