8609320 has 64 divisors (see below), whose sum is σ = 20528640. Its totient is φ = 3244800.

The previous prime is 8609309. The next prime is 8609323. The reversal of 8609320 is 239068.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (8609323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65655 + ... + 65785.

It is an arithmetic number, because the mean of its divisors is an integer number (320760).

Almost surely, 2^8609320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8609320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10264320).

8609320 is an abundant number, since it is smaller than the sum of its proper divisors (11919320).

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

8609320 is a wasteful number, since it uses less digits than its factorization.

8609320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 8609320 is about 2934.1642762463. The cubic root of 8609320 is about 204.9539456330.

The spelling of 8609320 in words is "eight million, six hundred nine thousand, three hundred twenty".