9728369147 has 4 divisors (see below), whose sum is σ = 11118136176. Its totient is φ = 8338602120.

The previous prime is 9728369143. The next prime is 9728369207. The reversal of 9728369147 is 7419638279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7419638279 = 59 ⋅125756581.

It is a cyclic number.

It is not a de Polignac number, because 9728369147 - 2² = 9728369143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9728369092 and 9728369101.

It is not an unprimeable number, because it can be changed into a prime (9728369141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694883504 + ... + 694883517.

It is an arithmetic number, because the mean of its divisors is an integer number (2779534044).

Almost surely, 2^9728369147 is an apocalyptic number.

9728369147 is a deficient number, since it is larger than the sum of its proper divisors (1389767029).

9728369147 is a wasteful number, since it uses less digits than its factorization.

9728369147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389767028.

The product of its digits is 4572288, while the sum is 56.

The square root of 9728369147 is about 98632.4953907180. The cubic root of 9728369147 is about 2134.7483206224.

The spelling of 9728369147 in words is "nine billion, seven hundred twenty-eight million, three hundred sixty-nine thousand, one hundred forty-seven".