8523340 has 48 divisors (see below), whose sum is σ = 21353472. Its totient is φ = 2794176.

The previous prime is 8523329. The next prime is 8523349. The reversal of 8523340 is 433258.

8523340 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8523349) 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, 1897 + ... + 4543.

It is an arithmetic number, because the mean of its divisors is an integer number (444864).

Almost surely, 2^8523340 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 8523340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10676736).

8523340 is an abundant number, since it is smaller than the sum of its proper divisors (12830132).

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

8523340 is a wasteful number, since it uses less digits than its factorization.

8523340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2686 (or 2684 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 8523340 is about 2919.4759803773. The cubic root of 8523340 is about 204.2693801284.

Adding to 8523340 its reverse (433258), we get a palindrome (8956598).

The spelling of 8523340 in words is "eight million, five hundred twenty-three thousand, three hundred forty".