8663923 has 2 divisors, whose sum is σ = 8663924. Its totient is φ = 8663922.

The previous prime is 8663899. The next prime is 8663959. The reversal of 8663923 is 3293668.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8663923 is a prime.

It is not a weakly prime, because it can be changed into another prime (8663023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4331961 + 4331962.

It is an arithmetic number, because the mean of its divisors is an integer number (4331962).

Almost surely, 2^8663923 is an apocalyptic number.

8663923 is a deficient number, since it is larger than the sum of its proper divisors (1).

8663923 is an equidigital number, since it uses as much as digits as its factorization.

8663923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 37.

The square root of 8663923 is about 2943.4542632764. The cubic root of 8663923 is about 205.3863268258.

It can be divided in two parts, 86 and 63923, that added together give a square (64009 = 253²).

The spelling of 8663923 in words is "eight million, six hundred sixty-three thousand, nine hundred twenty-three".