720980801 has 2 divisors, whose sum is σ = 720980802. Its totient is φ = 720980800.

The previous prime is 720980791. The next prime is 720980809. The reversal of 720980801 is 108089027.

It is a happy number.

720980801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 395214400 + 325766401 = 19880^2 + 18049^2 .

It is a cyclic number.

It is not a de Polignac number, because 720980801 - 2⁶ = 720980737 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (720980809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360490400 + 360490401.

It is an arithmetic number, because the mean of its divisors is an integer number (360490401).

Almost surely, 2^720980801 is an apocalyptic number.

It is an amenable number.

720980801 is a deficient number, since it is larger than the sum of its proper divisors (1).

720980801 is an equidigital number, since it uses as much as digits as its factorization.

720980801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 720980801 is about 26851.0856577532. The cubic root of 720980801 is about 896.6877430098.

The spelling of 720980801 in words is "seven hundred twenty million, nine hundred eighty thousand, eight hundred one".