98839 has 4 divisors (see below), whose sum is σ = 106456. Its totient is φ = 91224.

The previous prime is 98837. The next prime is 98849. The reversal of 98839 is 93889.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 98839 - 2¹ = 98837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 98798 and 98807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3789 + ... + 3814.

It is an arithmetic number, because the mean of its divisors is an integer number (26614).

2⁹⁸⁸³⁹ is an apocalyptic number.

98839 is a deficient number, since it is larger than the sum of its proper divisors (7617).

98839 is a wasteful number, since it uses less digits than its factorization.

98839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7616.

The product of its digits is 15552, while the sum is 37.

The square root of 98839 is about 314.3867045535. The cubic root of 98839 is about 46.2355591633.

Subtracting from 98839 its reverse (93889), we obtain a triangular number (4950 = T₉₉).

The spelling of 98839 in words is "ninety-eight thousand, eight hundred thirty-nine".