441621343 has 2 divisors, whose sum is σ = 441621344. Its totient is φ = 441621342.

The previous prime is 441621287. The next prime is 441621361. The reversal of 441621343 is 343126144.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-441621343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (441621143) 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 as a sum of consecutive naturals, namely, 220810671 + 220810672.

It is an arithmetic number, because the mean of its divisors is an integer number (220810672).

Almost surely, 2^441621343 is an apocalyptic number.

441621343 is a deficient number, since it is larger than the sum of its proper divisors (1).

441621343 is an equidigital number, since it uses as much as digits as its factorization.

441621343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 28.

The square root of 441621343 is about 21014.7886736936. The cubic root of 441621343 is about 761.5235728061.

Adding to 441621343 its reverse (343126144), we get a palindrome (784747487).

The spelling of 441621343 in words is "four hundred forty-one million, six hundred twenty-one thousand, three hundred forty-three".