804739967329 has 9 divisors (see below), whose sum is σ = 854878380217. Its totient is φ = 757387969024.

The previous prime is 804739967309. The next prime is 804739967333. The reversal of 804739967329 is 923769937408.

The square root of 804739967329 is 897073.

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 2196328225 + 802543639104 = 46865^2 + 895848^2 .

It is not a de Polignac number, because 804739967329 - 2³⁹ = 254984153441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (804739967309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15223857 + ... + 15276625.

Almost surely, 2^804739967329 is an apocalyptic number.

804739967329 is the 897073-rd square number.

804739967329 is the 448537-th centered octagonal number.

It is an amenable number.

804739967329 is a deficient number, since it is larger than the sum of its proper divisors (50138412888).

804739967329 is an frugal number, since it uses more digits than its factorization.

804739967329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105572 (or 52786 counting only the distinct ones).

The product of its (nonzero) digits is 123451776, while the sum is 67.

The spelling of 804739967329 in words is "eight hundred four billion, seven hundred thirty-nine million, nine hundred sixty-seven thousand, three hundred twenty-nine".