663223429 has 8 divisors (see below), whose sum is σ = 726948000. Its totient is φ = 600070800.

The previous prime is 663223427. The next prime is 663223433. The reversal of 663223429 is 924322366.

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 663223429 - 2¹ = 663223427 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663223427) 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, 140554 + ... + 145195.

It is an arithmetic number, because the mean of its divisors is an integer number (90868500).

Almost surely, 2^663223429 is an apocalyptic number.

It is an amenable number.

663223429 is a deficient number, since it is larger than the sum of its proper divisors (63724571).

663223429 is a wasteful number, since it uses less digits than its factorization.

663223429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285971.

The product of its digits is 93312, while the sum is 37.

The square root of 663223429 is about 25753.1246453707. The cubic root of 663223429 is about 872.0738954330.

It can be divided in two parts, 66322 and 3429, that added together give a triangular number (69751 = T₃₇₃).

The spelling of 663223429 in words is "six hundred sixty-three million, two hundred twenty-three thousand, four hundred twenty-nine".