720005763 has 8 divisors (see below), whose sum is σ = 972160000. Its totient is φ = 473927688.

The previous prime is 720005761. The next prime is 720005771. The reversal of 720005763 is 367500027.

720005763 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 720005763 - 2¹ = 720005761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 720005763.

It is not an unprimeable number, because it can be changed into a prime (720005761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1518763 + ... + 1519236.

It is an arithmetic number, because the mean of its divisors is an integer number (121520000).

Almost surely, 2^720005763 is an apocalyptic number.

720005763 is a deficient number, since it is larger than the sum of its proper divisors (252154237).

720005763 is a wasteful number, since it uses less digits than its factorization.

720005763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038081.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 720005763 is about 26832.9231169472. The cubic root of 720005763 is about 896.2833406324.

The spelling of 720005763 in words is "seven hundred twenty million, five thousand, seven hundred sixty-three".