720435712 has 20 divisors (see below), whose sum is σ = 1439465346. Its totient is φ = 360217600.

The previous prime is 720435701. The next prime is 720435743. The reversal of 720435712 is 217534027.

It can be written as a sum of positive squares in only one way, i.e., 656179456 + 64256256 = 25616^2 + 8016^2 .

It is a zygodrome in base 4.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 703039 + ... + 704062.

Almost surely, 2^720435712 is an apocalyptic number.

It is an amenable number.

720435712 is a deficient number, since it is larger than the sum of its proper divisors (719029634).

720435712 is an equidigital number, since it uses as much as digits as its factorization.

720435712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407119 (or 1407103 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 720435712 is about 26840.9335158075. The cubic root of 720435712 is about 896.4617093190.

Adding to 720435712 its reverse (217534027), we get a palindrome (937969739).

The spelling of 720435712 in words is "seven hundred twenty million, four hundred thirty-five thousand, seven hundred twelve".