8423320 has 32 divisors (see below), whose sum is σ = 19566720. Its totient is φ = 3260160.

The previous prime is 8423281. The next prime is 8423321. The reversal of 8423320 is 233248.

It is a junction number, because it is equal to n+sod(n) for n = 8423291 and 8423300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8423321) 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, 2157 + ... + 4636.

It is an arithmetic number, because the mean of its divisors is an integer number (611460).

Almost surely, 2^8423320 is an apocalyptic number.

It is an amenable number.

8423320 is an abundant number, since it is smaller than the sum of its proper divisors (11143400).

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

8423320 is a wasteful number, since it uses less digits than its factorization.

8423320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6835 (or 6831 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 8423320 is about 2902.2956431074. The cubic root of 8423320 is about 203.4672115433.

Adding to 8423320 its reverse (233248), we get a palindrome (8656568).

The spelling of 8423320 in words is "eight million, four hundred twenty-three thousand, three hundred twenty".