8604 has 18 divisors (see below), whose sum is σ = 21840.
Its totient is φ = 2856.
The previous prime is 8599. The next prime is 8609. The reversal of 8604 is 4068.
It is an interprime number because it is at equal distance from previous prime (8599) and next prime (8609).
It is a tau number, because it is divible by the number of its divisors (18).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a plaindrome in base 13.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 8604.
It is not an unprimeable number, because it can be changed into a prime (8609) 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, 84 + ... + 155.
It is an amenable number.
8604 is an abundant number, since it is smaller than the sum of its proper divisors (13236).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8604 is a wasteful number, since it uses less digits than its factorization.
8604 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 249 (or 244 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The square root of 8604 is about 92.7577490024.
The cubic root of 8604 is about 20.4911720864.
The spelling of 8604 in words is "eight thousand, six hundred four".