523441 has 4 divisors (see below), whose sum is σ = 532084. Its totient is φ = 514800.

The previous prime is 523433. The next prime is 523459. The reversal of 523441 is 144325.

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 5041 + 518400 = 71^2 + 720^2 .

It is a cyclic number.

It is not a de Polignac number, because 523441 - 2³ = 523433 is a prime.

It is a Duffinian number.

523441 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (523541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4230 + ... + 4351.

It is an arithmetic number, because the mean of its divisors is an integer number (133021).

2⁵²³⁴⁴¹ is an apocalyptic number.

It is an amenable number.

523441 is a deficient number, since it is larger than the sum of its proper divisors (8643).

523441 is an equidigital number, since it uses as much as digits as its factorization.

523441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8642.

The product of its digits is 480, while the sum is 19.

The square root of 523441 is about 723.4922252519. The cubic root of 523441 is about 80.5915012169.

Adding to 523441 its reverse (144325), we get a palindrome (667766).

The spelling of 523441 in words is "five hundred twenty-three thousand, four hundred forty-one".