9729572 has 12 divisors (see below), whose sum is σ = 17315760. Its totient is φ = 4782216.

The previous prime is 9729571. The next prime is 9729613. The reversal of 9729572 is 2759279.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (9729571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20378 + ... + 20849.

It is an arithmetic number, because the mean of its divisors is an integer number (1442980).

Almost surely, 2^9729572 is an apocalyptic number.

It is an amenable number.

9729572 is a deficient number, since it is larger than the sum of its proper divisors (7586188).

9729572 is a wasteful number, since it uses less digits than its factorization.

9729572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41290 (or 41288 counting only the distinct ones).

The product of its digits is 79380, while the sum is 41.

The square root of 9729572 is about 3119.2261860917. The cubic root of 9729572 is about 213.4836299829.

It can be divided in two parts, 9729 and 572, that added together give a palindrome (10301).

The spelling of 9729572 in words is "nine million, seven hundred twenty-nine thousand, five hundred seventy-two".