263316 has 12 divisors (see below), whose sum is σ = 614432. Its totient is φ = 87768.

The previous prime is 263303. The next prime is 263323. The reversal of 263316 is 613362.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 263292 and 263301.

It is a congruent number.

It is an unprimeable number.

263316 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10960 + ... + 10983.

2²⁶³³¹⁶ is an apocalyptic number.

It is an amenable number.

263316 is an abundant number, since it is smaller than the sum of its proper divisors (351116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263316 is a wasteful number, since it uses less digits than its factorization.

263316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21950 (or 21948 counting only the distinct ones).

The product of its digits is 648, while the sum is 21.

The square root of 263316 is about 513.1432548519. The cubic root of 263316 is about 64.0952358173.

Adding to 263316 its reverse (613362), we get a palindrome (876678).

The spelling of 263316 in words is "two hundred sixty-three thousand, three hundred sixteen".