720656383 has 2 divisors, whose sum is σ = 720656384. Its totient is φ = 720656382.

The previous prime is 720656369. The next prime is 720656413. The reversal of 720656383 is 383656027.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-720656383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720656683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360328191 + 360328192.

It is an arithmetic number, because the mean of its divisors is an integer number (360328192).

Almost surely, 2^720656383 is an apocalyptic number.

720656383 is a deficient number, since it is larger than the sum of its proper divisors (1).

720656383 is an equidigital number, since it uses as much as digits as its factorization.

720656383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 720656383 is about 26845.0439187571. The cubic root of 720656383 is about 896.5532293552.

The spelling of 720656383 in words is "seven hundred twenty million, six hundred fifty-six thousand, three hundred eighty-three".