720327663 has 24 divisors (see below), whose sum is σ = 1140796800. Its totient is φ = 434356560.

The previous prime is 720327631. The next prime is 720327679. The reversal of 720327663 is 366723027.

It is not a de Polignac number, because 720327663 - 2⁵ = 720327631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720327763) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1420 + ... + 37982.

It is an arithmetic number, because the mean of its divisors is an integer number (47533200).

Almost surely, 2^720327663 is an apocalyptic number.

720327663 is a deficient number, since it is larger than the sum of its proper divisors (420469137).

720327663 is a wasteful number, since it uses less digits than its factorization.

720327663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36779 (or 36776 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 36.

The square root of 720327663 is about 26838.9206750197. The cubic root of 720327663 is about 896.4168907773.

The spelling of 720327663 in words is "seven hundred twenty million, three hundred twenty-seven thousand, six hundred sixty-three".