720485648 has 20 divisors (see below), whose sum is σ = 1396701900. Its totient is φ = 360046464.

The previous prime is 720485617. The next prime is 720485651. The reversal of 720485648 is 846584027.

720485648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 383689744 + 336795904 = 19588^2 + 18352^2 .

It is a junction number, because it is equal to n+sod(n) for n = 720485599 and 720485608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20678 + ... + 43226.

It is an arithmetic number, because the mean of its divisors is an integer number (69835095).

Almost surely, 2^720485648 is an apocalyptic number.

It is an amenable number.

720485648 is a deficient number, since it is larger than the sum of its proper divisors (676216252).

720485648 is a wasteful number, since it uses less digits than its factorization.

720485648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24554 (or 24548 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 44.

The square root of 720485648 is about 26841.8637206882. The cubic root of 720485648 is about 896.4824211729.

The spelling of 720485648 in words is "seven hundred twenty million, four hundred eighty-five thousand, six hundred forty-eight".