720766013 has 16 divisors (see below), whose sum is σ = 794270400. Its totient is φ = 648622080.

The previous prime is 720765989. The next prime is 720766063. The reversal of 720766013 is 310667027.

720766013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 720766013 - 2⁸ = 720765757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720766063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 936893 + ... + 937661.

It is an arithmetic number, because the mean of its divisors is an integer number (49641900).

Almost surely, 2^720766013 is an apocalyptic number.

It is an amenable number.

720766013 is a deficient number, since it is larger than the sum of its proper divisors (73504387).

720766013 is a wasteful number, since it uses less digits than its factorization.

720766013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 720766013 is about 26847.0857450115. The cubic root of 720766013 is about 896.5986898313.

The spelling of 720766013 in words is "seven hundred twenty million, seven hundred sixty-six thousand, thirteen".