• 320863² = 102953064769 is an anagram of the next square 320864² = 102953706496.

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320863 has 4 divisors (see below), whose sum is σ = 325720. Its totient is φ = 316008.

The previous prime is 320861. The next prime is 320867. The reversal of 320863 is 368023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368023 = 23 ⋅16001.

It is a cyclic number.

It is not a de Polignac number, because 320863 - 2¹ = 320861 is a prime.

It is a Duffinian number.

320863 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320861) 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, 2328 + ... + 2461.

It is an arithmetic number, because the mean of its divisors is an integer number (81430).

2³²⁰⁸⁶³ is an apocalyptic number.

320863 is a deficient number, since it is larger than the sum of its proper divisors (4857).

320863 is an equidigital number, since it uses as much as digits as its factorization.

320863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4856.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 320863 is about 566.4477027935. The cubic root of 320863 is about 68.4604705598.

Adding to 320863 its reverse (368023), we get a palindrome (688886).

The spelling of 320863 in words is "three hundred twenty thousand, eight hundred sixty-three".