443663113 has 2 divisors, whose sum is σ = 443663114. Its totient is φ = 443663112.

The previous prime is 443663111. The next prime is 443663177. The reversal of 443663113 is 311366344.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 443018304 + 644809 = 21048^2 + 803^2 .

It is a cyclic number.

It is not a de Polignac number, because 443663113 - 2¹ = 443663111 is a prime.

Together with 443663111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (443663111) 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 as a sum of consecutive naturals, namely, 221831556 + 221831557.

It is an arithmetic number, because the mean of its divisors is an integer number (221831557).

Almost surely, 2^443663113 is an apocalyptic number.

It is an amenable number.

443663113 is a deficient number, since it is larger than the sum of its proper divisors (1).

443663113 is an equidigital number, since it uses as much as digits as its factorization.

443663113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 31.

The square root of 443663113 is about 21063.3120140210. The cubic root of 443663113 is about 762.6953654374.

The spelling of 443663113 in words is "four hundred forty-three million, six hundred sixty-three thousand, one hundred thirteen".