9599 has 4 divisors (see below), whose sum is σ = 9960. Its totient is φ = 9240.

The previous prime is 9587. The next prime is 9601. The reversal of 9599 is 9959.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9959 = 23 ⋅433.

It is a cyclic number.

It is not a de Polignac number, because 9599 - 2⁸ = 9343 is a prime.

It is a Duffinian number.

9599 is a modest number, since divided by 99 gives 95 as remainder.

It is a plaindrome in base 6, base 8, base 12 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137 + ... + 194.

It is an arithmetic number, because the mean of its divisors is an integer number (2490).

9599 is a deficient number, since it is larger than the sum of its proper divisors (361).

9599 is a wasteful number, since it uses less digits than its factorization.

9599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360.

The product of its digits is 3645, while the sum is 32.

The square root of 9599 is about 97.9744864748. The cubic root of 9599 is about 21.2524334007.

The spelling of 9599 in words is "nine thousand, five hundred ninety-nine".