9806346729 has 15 divisors (see below), whose sum is σ = 14650318573. Its totient is φ = 6536970324.

The previous prime is 9806346721. The next prime is 9806346731. The reversal of 9806346729 is 9276436089.

It is a happy number.

The square root of 9806346729 is 99027.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 9806346729 - 2³ = 9806346721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9806346721) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 885742 + ... + 896744.

Almost surely, 2^9806346729 is an apocalyptic number.

9806346729 is the 99027-th square number.

9806346729 is the 49514-th centered octagonal number.

It is an amenable number.

9806346729 is a deficient number, since it is larger than the sum of its proper divisors (4843971844).

9806346729 is an frugal number, since it uses more digits than its factorization.

9806346729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22018 (or 11006 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The cubic root of 9806346729 is about 2140.4368288246.

The spelling of 9806346729 in words is "nine billion, eight hundred six million, three hundred forty-six thousand, seven hundred twenty-nine".