9728315 has 8 divisors (see below), whose sum is σ = 11693040. Its totient is φ = 7769952.

The previous prime is 9728291. The next prime is 9728317. The reversal of 9728315 is 5138279.

9728315 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 a cyclic number.

It is not a de Polignac number, because 9728315 - 2²⁰ = 8679739 is a prime.

It is a super-2 number, since 2×9728315² = 189280225478450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9728317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2972 + ... + 5318.

It is an arithmetic number, because the mean of its divisors is an integer number (1461630).

Almost surely, 2^9728315 is an apocalyptic number.

9728315 is a deficient number, since it is larger than the sum of its proper divisors (1964725).

9728315 is a wasteful number, since it uses less digits than its factorization.

9728315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181.

The product of its digits is 15120, while the sum is 35.

The square root of 9728315 is about 3119.0246873021. The cubic root of 9728315 is about 213.4744360026.

The spelling of 9728315 in words is "nine million, seven hundred twenty-eight thousand, three hundred fifteen".