720397005 has 8 divisors (see below), whose sum is σ = 1152635232. Its totient is φ = 384211728.

The previous prime is 720396983. The next prime is 720397037. The reversal of 720397005 is 500793027.

720397005 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 720397005 - 2⁵ = 720396973 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24013219 + ... + 24013248.

It is an arithmetic number, because the mean of its divisors is an integer number (144079404).

Almost surely, 2^720397005 is an apocalyptic number.

It is an amenable number.

720397005 is a deficient number, since it is larger than the sum of its proper divisors (432238227).

720397005 is a wasteful number, since it uses less digits than its factorization.

720397005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48026475.

The product of its (nonzero) digits is 13230, while the sum is 33.

The square root of 720397005 is about 26840.2124619013. The cubic root of 720397005 is about 896.4456542363.

The spelling of 720397005 in words is "seven hundred twenty million, three hundred ninety-seven thousand, five".