443972497 has 2 divisors, whose sum is σ = 443972498. Its totient is φ = 443972496.

The previous prime is 443972491. The next prime is 443972537. The reversal of 443972497 is 794279344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 432473616 + 11498881 = 20796^2 + 3391^2 .

It is a cyclic number.

It is not a de Polignac number, because 443972497 - 2³ = 443972489 is a prime.

It is a super-2 number, since 2×443972497² = 394223156184830018, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 443972497.

It is not a weakly prime, because it can be changed into another prime (443972491) 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, 221986248 + 221986249.

It is an arithmetic number, because the mean of its divisors is an integer number (221986249).

Almost surely, 2^443972497 is an apocalyptic number.

It is an amenable number.

443972497 is a deficient number, since it is larger than the sum of its proper divisors (1).

443972497 is an equidigital number, since it uses as much as digits as its factorization.

443972497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 49.

The square root of 443972497 is about 21070.6548782899. The cubic root of 443972497 is about 762.8726102190.

The spelling of 443972497 in words is "four hundred forty-three million, nine hundred seventy-two thousand, four hundred ninety-seven".