8442972427 has 2 divisors, whose sum is σ = 8442972428. Its totient is φ = 8442972426.

The previous prime is 8442972409. The next prime is 8442972469. The reversal of 8442972427 is 7242792448.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8442972427 - 2¹¹ = 8442970379 is a prime.

It is not a weakly prime, because it can be changed into another prime (8442975427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4221486213 + 4221486214.

It is an arithmetic number, because the mean of its divisors is an integer number (4221486214).

Almost surely, 2^8442972427 is an apocalyptic number.

8442972427 is a deficient number, since it is larger than the sum of its proper divisors (1).

8442972427 is an equidigital number, since it uses as much as digits as its factorization.

8442972427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1806336, while the sum is 49.

The square root of 8442972427 is about 91885.6486454767. The cubic root of 8442972427 is about 2036.2532492449.

The spelling of 8442972427 in words is "eight billion, four hundred forty-two million, nine hundred seventy-two thousand, four hundred twenty-seven".