9620720 has 40 divisors (see below), whose sum is σ = 22506000. Its totient is φ = 3824640.

The previous prime is 9620711. The next prime is 9620747. The reversal of 9620720 is 270269.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 9620720.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19031 + ... + 19529.

It is an arithmetic number, because the mean of its divisors is an integer number (562650).

Almost surely, 2^9620720 is an apocalyptic number.

It is an amenable number.

9620720 is an abundant number, since it is smaller than the sum of its proper divisors (12885280).

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

9620720 is a wasteful number, since it uses less digits than its factorization.

9620720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 9620720 is about 3101.7285503409. The cubic root of 9620720 is about 212.6845087225.

Adding to 9620720 its reverse (270269), we get a palindrome (9890989).

The spelling of 9620720 in words is "nine million, six hundred twenty thousand, seven hundred twenty".