663223393 has 8 divisors (see below), whose sum is σ = 782420480. Its totient is φ = 550139040.

The previous prime is 663223391. The next prime is 663223399. The reversal of 663223393 is 393322366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 663223393 - 2¹ = 663223391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663223391) 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 7 ways as a sum of consecutive naturals, for example, 1527948 + ... + 1528381.

It is an arithmetic number, because the mean of its divisors is an integer number (97802560).

Almost surely, 2^663223393 is an apocalyptic number.

It is an amenable number.

663223393 is a deficient number, since it is larger than the sum of its proper divisors (119197087).

663223393 is a wasteful number, since it uses less digits than its factorization.

663223393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056367.

The product of its digits is 104976, while the sum is 37.

The square root of 663223393 is about 25753.1239464264. The cubic root of 663223393 is about 872.0738796542.

The spelling of 663223393 in words is "six hundred sixty-three million, two hundred twenty-three thousand, three hundred ninety-three".