443397049 has 2 divisors, whose sum is σ = 443397050. Its totient is φ = 443397048.

The previous prime is 443397047. The next prime is 443397121. The reversal of 443397049 is 940793344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 364542649 + 78854400 = 19093^2 + 8880^2 .

It is a cyclic number.

It is not a de Polignac number, because 443397049 - 2¹ = 443397047 is a prime.

Together with 443397047, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 443396996 and 443397014.

It is not a weakly prime, because it can be changed into another prime (443397041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221698524 + 221698525.

It is an arithmetic number, because the mean of its divisors is an integer number (221698525).

Almost surely, 2^443397049 is an apocalyptic number.

It is an amenable number.

443397049 is a deficient number, since it is larger than the sum of its proper divisors (1).

443397049 is an equidigital number, since it uses as much as digits as its factorization.

443397049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 43.

The square root of 443397049 is about 21056.9952509849. The cubic root of 443397049 is about 762.5428725871.

The spelling of 443397049 in words is "four hundred forty-three million, three hundred ninety-seven thousand, forty-nine".