441563663 has 4 divisors (see below), whose sum is σ = 444740520. Its totient is φ = 438386808.

The previous prime is 441563653. The next prime is 441563671. The reversal of 441563663 is 366365144.

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

It is a cyclic number.

It is not a de Polignac number, because 441563663 - 2¹⁴ = 441547279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441563653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1588220 + ... + 1588497.

It is an arithmetic number, because the mean of its divisors is an integer number (111185130).

Almost surely, 2^441563663 is an apocalyptic number.

441563663 is a deficient number, since it is larger than the sum of its proper divisors (3176857).

441563663 is a wasteful number, since it uses less digits than its factorization.

441563663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176856.

The product of its digits is 155520, while the sum is 38.

The square root of 441563663 is about 21013.4162619980. The cubic root of 441563663 is about 761.4904172587.

The spelling of 441563663 in words is "four hundred forty-one million, five hundred sixty-three thousand, six hundred sixty-three".