663222323 has 4 divisors (see below), whose sum is σ = 664733520. Its totient is φ = 661711128.

The previous prime is 663222281. The next prime is 663222331. The reversal of 663222323 is 323222366.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 663222323 - 2¹⁶ = 663156787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663222353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754940 + ... + 755817.

It is an arithmetic number, because the mean of its divisors is an integer number (166183380).

Almost surely, 2^663222323 is an apocalyptic number.

663222323 is a deficient number, since it is larger than the sum of its proper divisors (1511197).

663222323 is a wasteful number, since it uses less digits than its factorization.

663222323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511196.

The product of its digits is 15552, while the sum is 29.

The square root of 663222323 is about 25753.1031722393. The cubic root of 663222323 is about 872.0734106722.

Adding to 663222323 its reverse (323222366), we get a palindrome (986444689).

The spelling of 663222323 in words is "six hundred sixty-three million, two hundred twenty-two thousand, three hundred twenty-three".