9439346729 has 16 divisors (see below), whose sum is σ = 9923781504. Its totient is φ = 8969961600.

The previous prime is 9439346701. The next prime is 9439346803. The reversal of 9439346729 is 9276439349.

It is a cyclic number.

It is not a de Polignac number, because 9439346729 - 2¹⁶ = 9439281193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9439346029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239282 + ... + 275924.

It is an arithmetic number, because the mean of its divisors is an integer number (620236344).

Almost surely, 2^9439346729 is an apocalyptic number.

It is an amenable number.

9439346729 is a deficient number, since it is larger than the sum of its proper divisors (484434775).

9439346729 is a wasteful number, since it uses less digits than its factorization.

9439346729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36848.

The product of its digits is 8817984, while the sum is 56.

The square root of 9439346729 is about 97156.3005110837. The cubic root of 9439346729 is about 2113.3948575771.

The spelling of 9439346729 in words is "nine billion, four hundred thirty-nine million, three hundred forty-six thousand, seven hundred twenty-nine".