720740803 has 8 divisors (see below), whose sum is σ = 733440656. Its totient is φ = 708069600.

The previous prime is 720740791. The next prime is 720740819. The reversal of 720740803 is 308047027.

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

It is a cyclic number.

It is not a de Polignac number, because 720740803 - 2⁹ = 720740291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720740843) 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, 47173 + ... + 60553.

It is an arithmetic number, because the mean of its divisors is an integer number (91680082).

Almost surely, 2^720740803 is an apocalyptic number.

720740803 is a deficient number, since it is larger than the sum of its proper divisors (12699853).

720740803 is a wasteful number, since it uses less digits than its factorization.

720740803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14325.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 720740803 is about 26846.6162299832. The cubic root of 720740803 is about 896.5882363619.

The spelling of 720740803 in words is "seven hundred twenty million, seven hundred forty thousand, eight hundred three".