663046730 has 8 divisors (see below), whose sum is σ = 1193484132. Its totient is φ = 265218688.

The previous prime is 663046717. The next prime is 663046739. The reversal of 663046730 is 37640366.

It can be written as a sum of positive squares in 2 ways, for example, as 637108081 + 25938649 = 25241^2 + 5093^2 .

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

It is not an unprimeable number, because it can be changed into a prime (663046739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33152327 + ... + 33152346.

Almost surely, 2^663046730 is an apocalyptic number.

663046730 is a deficient number, since it is larger than the sum of its proper divisors (530437402).

663046730 is a wasteful number, since it uses less digits than its factorization.

663046730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66304680.

The product of its (nonzero) digits is 54432, while the sum is 35.

The square root of 663046730 is about 25749.6937845870. The cubic root of 663046730 is about 871.9964412573.

The spelling of 663046730 in words is "six hundred sixty-three million, forty-six thousand, seven hundred thirty".