9618 has 16 divisors (see below), whose sum is σ = 22080. Its totient is φ = 2736.

The previous prime is 9613. The next prime is 9619. The reversal of 9618 is 8169.

9618 is nontrivially palindromic in base 8.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73 + ... + 156.

It is an arithmetic number, because the mean of its divisors is an integer number (1380).

2⁹⁶¹⁸ is an apocalyptic number.

9618 is an abundant number, since it is smaller than the sum of its proper divisors (12462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11040).

9618 is a wasteful number, since it uses less digits than its factorization.

9618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241.

The product of its digits is 432, while the sum is 24.

The square root of 9618 is about 98.0714025596. The cubic root of 9618 is about 21.2664463224.

It can be divided in two parts, 961 and 8, that added together give a palindrome (969).

The spelling of 9618 in words is "nine thousand, six hundred eighteen".