543623441 has 2 divisors, whose sum is σ = 543623442. Its totient is φ = 543623440.

The previous prime is 543623413. The next prime is 543623449. The reversal of 543623441 is 144326345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 478078225 + 65545216 = 21865^2 + 8096^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-543623441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 543623398 and 543623407.

It is not a weakly prime, because it can be changed into another prime (543623449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271811720 + 271811721.

It is an arithmetic number, because the mean of its divisors is an integer number (271811721).

Almost surely, 2^543623441 is an apocalyptic number.

It is an amenable number.

543623441 is a deficient number, since it is larger than the sum of its proper divisors (1).

543623441 is an equidigital number, since it uses as much as digits as its factorization.

543623441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 32.

The square root of 543623441 is about 23315.7337649923. The cubic root of 543623441 is about 816.1426210286.

Adding to 543623441 its reverse (144326345), we get a palindrome (687949786).

The spelling of 543623441 in words is "five hundred forty-three million, six hundred twenty-three thousand, four hundred forty-one".