9720275 has 12 divisors (see below), whose sum is σ = 12103392. Its totient is φ = 7743840.

The previous prime is 9720259. The next prime is 9720281. The reversal of 9720275 is 5720279.

9720275 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9720275 - 2⁴ = 9720259 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian 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 11 ways as a sum of consecutive naturals, for example, 6662 + ... + 7988.

It is an arithmetic number, because the mean of its divisors is an integer number (1008616).

Almost surely, 2^9720275 is an apocalyptic number.

9720275 is a deficient number, since it is larger than the sum of its proper divisors (2383117).

9720275 is a wasteful number, since it uses less digits than its factorization.

9720275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630 (or 1625 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 9720275 is about 3117.7355564576. The cubic root of 9720275 is about 213.4156108958.

The spelling of 9720275 in words is "nine million, seven hundred twenty thousand, two hundred seventy-five".