320079 has 4 divisors (see below), whose sum is σ = 426776. Its totient is φ = 213384.

The previous prime is 320063. The next prime is 320081. The reversal of 320079 is 970023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 970023 = 3 ⋅323341.

It is not a de Polignac number, because 320079 - 2⁴ = 320063 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320009) 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, 53344 + ... + 53349.

It is an arithmetic number, because the mean of its divisors is an integer number (106694).

2³²⁰⁰⁷⁹ is an apocalyptic number.

320079 is a deficient number, since it is larger than the sum of its proper divisors (106697).

320079 is a wasteful number, since it uses less digits than its factorization.

320079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106696.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 320079 is about 565.7552474348. The cubic root of 320079 is about 68.4046660748.

The spelling of 320079 in words is "three hundred twenty thousand, seventy-nine".