263441 has 4 divisors (see below), whose sum is σ = 265584. Its totient is φ = 261300.

The previous prime is 263437. The next prime is 263443. The reversal of 263441 is 144362.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 263441 - 2² = 263437 is a prime.

It is a super-3 number, since 3×263441³ = 54849333354825363, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263443) by changing a digit.

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, 875 + ... + 1136.

It is an arithmetic number, because the mean of its divisors is an integer number (66396).

263441 is a Friedman number, since it can be written as 6^4+4^3^2+1, using all its digits and the basic arithmetic operations.

2²⁶³⁴⁴¹ is an apocalyptic number.

It is an amenable number.

263441 is a deficient number, since it is larger than the sum of its proper divisors (2143).

263441 is a wasteful number, since it uses less digits than its factorization.

263441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142.

The product of its digits is 576, while the sum is 20.

The square root of 263441 is about 513.2650387470. The cubic root of 263441 is about 64.1053765316.

The spelling of 263441 in words is "two hundred sixty-three thousand, four hundred forty-one".