8423656 has 16 divisors (see below), whose sum is σ = 15920640. Its totient is φ = 4178160.

The previous prime is 8423651. The next prime is 8423663. The reversal of 8423656 is 6563248.

It is a happy number.

It is a d-powerful number, because it can be written as 8⁵ + 4² + 2²³ + 3⁷ + 6² + 5 + 6² .

It is not an unprimeable number, because it can be changed into a prime (8423651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3130 + ... + 5161.

It is an arithmetic number, because the mean of its divisors is an integer number (995040).

Almost surely, 2^8423656 is an apocalyptic number.

It is an amenable number.

8423656 is a deficient number, since it is larger than the sum of its proper divisors (7496984).

8423656 is a wasteful number, since it uses less digits than its factorization.

8423656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8424 (or 8420 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 8423656 is about 2902.3535277426. The cubic root of 8423656 is about 203.4699168928.

The spelling of 8423656 in words is "eight million, four hundred twenty-three thousand, six hundred fifty-six".