720647052 has 24 divisors (see below), whose sum is σ = 1717287936. Its totient is φ = 235104528.

The previous prime is 720647027. The next prime is 720647087. The reversal of 720647052 is 250746027.

720647052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 638308 + ... + 639435.

It is an arithmetic number, because the mean of its divisors is an integer number (71553664).

Almost surely, 2^720647052 is an apocalyptic number.

It is an amenable number.

720647052 is an abundant number, since it is smaller than the sum of its proper divisors (996640884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

720647052 is a wasteful number, since it uses less digits than its factorization.

720647052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277797 (or 1277795 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 720647052 is about 26844.8701244763. The cubic root of 720647052 is about 896.5493598392.

The spelling of 720647052 in words is "seven hundred twenty million, six hundred forty-seven thousand, fifty-two".