9994600729 has 9 divisors (see below), whose sum is σ = 10059501277. Its totient is φ = 9930118144.

The previous prime is 9994600697. The next prime is 9994600739. The reversal of 9994600729 is 9270064999.

The square root of 9994600729 is 99973.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1392409225 + 8602191504 = 37315^2 + 92748^2 .

It is not a de Polignac number, because 9994600729 - 2⁵ = 9994600697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9994600729.

It is not an unprimeable number, because it can be changed into a prime (9994600739) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 25692867 + ... + 25693255.

Almost surely, 2^9994600729 is an apocalyptic number.

9994600729 is the 99973-rd square number.

9994600729 is the 49987-th centered octagonal number.

It is an amenable number.

9994600729 is a deficient number, since it is larger than the sum of its proper divisors (64900548).

9994600729 is an frugal number, since it uses more digits than its factorization.

9994600729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 55.

The cubic root of 9994600729 is about 2154.0468743347.

The spelling of 9994600729 in words is "nine billion, nine hundred ninety-four million, six hundred thousand, seven hundred twenty-nine".