263564341 has 4 divisors (see below), whose sum is σ = 264464172. Its totient is φ = 262664512.

The previous prime is 263564339. The next prime is 263564363. The reversal of 263564341 is 143465362.

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

It can be written as a sum of positive squares in 2 ways, for example, as 213452100 + 50112241 = 14610^2 + 7079^2 .

It is a cyclic number.

It is not a de Polignac number, because 263564341 - 2¹ = 263564339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 263564297 and 263564306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263564321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449476 + ... + 450061.

It is an arithmetic number, because the mean of its divisors is an integer number (66116043).

Almost surely, 2^263564341 is an apocalyptic number.

It is an amenable number.

263564341 is a deficient number, since it is larger than the sum of its proper divisors (899831).

263564341 is an equidigital number, since it uses as much as digits as its factorization.

263564341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899830.

The product of its digits is 51840, while the sum is 34.

The square root of 263564341 is about 16234.6647948148. The cubic root of 263564341 is about 641.1537951473.

The spelling of 263564341 in words is "two hundred sixty-three million, five hundred sixty-four thousand, three hundred forty-one".