9729126 has 48 divisors (see below), whose sum is σ = 23780400. Its totient is φ = 2946240.

The previous prime is 9729103. The next prime is 9729127. The reversal of 9729126 is 6219279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9729127) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 5790 + ... + 7278.

It is an arithmetic number, because the mean of its divisors is an integer number (495425).

Almost surely, 2^9729126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9729126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11890200).

9729126 is an abundant number, since it is smaller than the sum of its proper divisors (14051274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9729126 is a wasteful number, since it uses less digits than its factorization.

9729126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522 (or 1505 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 9729126 is about 3119.1546931821. The cubic root of 9729126 is about 213.4803679294.

The spelling of 9729126 in words is "nine million, seven hundred twenty-nine thousand, one hundred twenty-six".