9724389113 has 6 divisors (see below), whose sum is σ = 10296842526. Its totient is φ = 9151983552.

The previous prime is 9724389109. The next prime is 9724389119. The reversal of 9724389113 is 3119834279.

It can be written as a sum of positive squares in 3 ways, for example, as 3596161024 + 6128228089 = 59968^2 + 78283^2 .

It is not a de Polignac number, because 9724389113 - 2² = 9724389109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9724389119) 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 5 ways as a sum of consecutive naturals, for example, 394631 + ... + 418547.

It is an arithmetic number, because the mean of its divisors is an integer number (1716140421).

Almost surely, 2^9724389113 is an apocalyptic number.

It is an amenable number.

9724389113 is a deficient number, since it is larger than the sum of its proper divisors (572453413).

9724389113 is an frugal number, since it uses more digits than its factorization.

9724389113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47851 (or 23934 counting only the distinct ones).

The product of its digits is 326592, while the sum is 47.

The square root of 9724389113 is about 98612.3172478976. The cubic root of 9724389113 is about 2134.4571608298.

The spelling of 9724389113 in words is "nine billion, seven hundred twenty-four million, three hundred eighty-nine thousand, one hundred thirteen".