98539 has 6 divisors (see below), whose sum is σ = 114684. Its totient is φ = 84420.

The previous prime is 98533. The next prime is 98543. The reversal of 98539 is 93589.

It is not a de Polignac number, because 98539 - 2⁵ = 98507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98533) 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, 957 + ... + 1054.

It is an arithmetic number, because the mean of its divisors is an integer number (19114).

2⁹⁸⁵³⁹ is an apocalyptic number.

98539 is a deficient number, since it is larger than the sum of its proper divisors (16145).

98539 is a wasteful number, since it uses less digits than its factorization.

98539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025 (or 2018 counting only the distinct ones).

The product of its digits is 9720, while the sum is 34.

The square root of 98539 is about 313.9092225469. The cubic root of 98539 is about 46.1887330958.

Subtracting from 98539 its reverse (93589), we obtain a triangular number (4950 = T₉₉).

It can be divided in two parts, 985 and 39, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 98539 in words is "ninety-eight thousand, five hundred thirty-nine".