427443073 has 2 divisors, whose sum is σ = 427443074. Its totient is φ = 427443072.

The previous prime is 427443001. The next prime is 427443077. The reversal of 427443073 is 370344724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 335915584 + 91527489 = 18328^2 + 9567^2 .

It is a cyclic number.

It is not a de Polignac number, because 427443073 - 2²⁵ = 393888641 is a prime.

It is not a weakly prime, because it can be changed into another prime (427443077) 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, 213721536 + 213721537.

It is an arithmetic number, because the mean of its divisors is an integer number (213721537).

Almost surely, 2^427443073 is an apocalyptic number.

It is an amenable number.

427443073 is a deficient number, since it is larger than the sum of its proper divisors (1).

427443073 is an equidigital number, since it uses as much as digits as its factorization.

427443073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 34.

The square root of 427443073 is about 20674.6964427534. The cubic root of 427443073 is about 753.2851878586.

Adding to 427443073 its reverse (370344724), we get a palindrome (797787797).

The spelling of 427443073 in words is "four hundred twenty-seven million, four hundred forty-three thousand, seventy-three".