98599 has 4 divisors (see below), whose sum is σ = 100936. Its totient is φ = 96264.

The previous prime is 98597. The next prime is 98621. The reversal of 98599 is 99589.

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 98599 - 2¹ = 98597 is a prime.

It is a Duffinian number.

98599 is a lucky number.

It is a plaindrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98597) 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, 1104 + ... + 1189.

It is an arithmetic number, because the mean of its divisors is an integer number (25234).

2⁹⁸⁵⁹⁹ is an apocalyptic number.

98599 is a deficient number, since it is larger than the sum of its proper divisors (2337).

98599 is a wasteful number, since it uses less digits than its factorization.

98599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2336.

The product of its digits is 29160, while the sum is 40.

The square root of 98599 is about 314.0047770337. The cubic root of 98599 is about 46.1981059049.

Subtracting 98599 from its reverse (99589), we obtain a triangular number (990 = T₄₄).

The spelling of 98599 in words is "ninety-eight thousand, five hundred ninety-nine".