1443423427 has 2 divisors, whose sum is σ = 1443423428. Its totient is φ = 1443423426.

The previous prime is 1443423413. The next prime is 1443423433. The reversal of 1443423427 is 7243243441.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1443423427 is a prime.

It is a super-2 number, since 2×1443423427² = 4166942379224848658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1443423392 and 1443423401.

It is not a weakly prime, because it can be changed into another prime (1443423497) 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, 721711713 + 721711714.

It is an arithmetic number, because the mean of its divisors is an integer number (721711714).

Almost surely, 2^1443423427 is an apocalyptic number.

1443423427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1443423427 is an equidigital number, since it uses as much as digits as its factorization.

1443423427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 34.

The square root of 1443423427 is about 37992.4127557069. The cubic root of 1443423427 is about 1130.1374064772.

Adding to 1443423427 its reverse (7243243441), we get a palindrome (8686666868).

The spelling of 1443423427 in words is "one billion, four hundred forty-three million, four hundred twenty-three thousand, four hundred twenty-seven".