320704769 has 16 divisors (see below), whose sum is σ = 402537600. Its totient is φ = 248213760.

The previous prime is 320704763. The next prime is 320704837. The reversal of 320704769 is 967407023.

It is a cyclic number.

It is not a de Polignac number, because 320704769 - 2⁴ = 320704753 is a prime.

It is a super-2 number, since 2×320704769² = 205703097718686722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320704763) 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 15 ways as a sum of consecutive naturals, for example, 2504 + ... + 25449.

It is an arithmetic number, because the mean of its divisors is an integer number (25158600).

Almost surely, 2^320704769 is an apocalyptic number.

It is an amenable number.

320704769 is a deficient number, since it is larger than the sum of its proper divisors (81832831).

320704769 is a wasteful number, since it uses less digits than its factorization.

320704769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28120.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 320704769 is about 17908.2318781057. The cubic root of 320704769 is about 684.4921513314.

The spelling of 320704769 in words is "three hundred twenty million, seven hundred four thousand, seven hundred sixty-nine".