320704799 has 4 divisors (see below), whose sum is σ = 325221840. Its totient is φ = 316187760.

The previous prime is 320704763. The next prime is 320704837. The reversal of 320704799 is 997407023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 997407023 = 10687 ⋅93329.

It is a cyclic number.

It is not a de Polignac number, because 320704799 - 2²⁰ = 319656223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320704739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2258414 + ... + 2258555.

It is an arithmetic number, because the mean of its divisors is an integer number (81305460).

Almost surely, 2^320704799 is an apocalyptic number.

320704799 is a deficient number, since it is larger than the sum of its proper divisors (4517041).

320704799 is an equidigital number, since it uses as much as digits as its factorization.

320704799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4517040.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 320704799 is about 17908.2327157093. The cubic root of 320704799 is about 684.4921726747.

The spelling of 320704799 in words is "three hundred twenty million, seven hundred four thousand, seven hundred ninety-nine".