8601320 has 128 divisors (see below), whose sum is σ = 25401600. Its totient is φ = 2543616.

The previous prime is 8601293. The next prime is 8601331. The reversal of 8601320 is 231068.

8601320 = T₂₈₀ + T₂₈₁ + ... + T₄₁₈.

8601320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 8601292 and 8601301.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61811 + ... + 61949.

It is an arithmetic number, because the mean of its divisors is an integer number (198450).

Almost surely, 2^8601320 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 8601320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12700800).

8601320 is an abundant number, since it is smaller than the sum of its proper divisors (16800280).

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

8601320 is a wasteful number, since it uses less digits than its factorization.

8601320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 8601320 is about 2932.8007092198. The cubic root of 8601320 is about 204.8904431462.

Adding to 8601320 its reverse (231068), we get a palindrome (8832388).

The spelling of 8601320 in words is "eight million, six hundred one thousand, three hundred twenty".