263363 has 4 divisors (see below), whose sum is σ = 264768. Its totient is φ = 261960.

The previous prime is 263323. The next prime is 263369. The reversal of 263363 is 363362.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 263363 - 2¹⁴ = 246979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263369) 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, 368 + ... + 813.

It is an arithmetic number, because the mean of its divisors is an integer number (66192).

2²⁶³³⁶³ is an apocalyptic number.

263363 is a deficient number, since it is larger than the sum of its proper divisors (1405).

263363 is a wasteful number, since it uses less digits than its factorization.

263363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404.

The product of its digits is 1944, while the sum is 23.

The square root of 263363 is about 513.1890489868. The cubic root of 263363 is about 64.0990491023.

Subtracting 263363 from its reverse (363362), we obtain a palindrome (99999).

It can be divided in two parts, 263 and 363, that added together give a palindrome (626).

The spelling of 263363 in words is "two hundred sixty-three thousand, three hundred sixty-three".