442247167 has 2 divisors, whose sum is σ = 442247168. Its totient is φ = 442247166.

The previous prime is 442247161. The next prime is 442247207. The reversal of 442247167 is 761742244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442247167 - 2³ = 442247159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442247161) 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, 221123583 + 221123584.

It is an arithmetic number, because the mean of its divisors is an integer number (221123584).

Almost surely, 2^442247167 is an apocalyptic number.

442247167 is a deficient number, since it is larger than the sum of its proper divisors (1).

442247167 is an equidigital number, since it uses as much as digits as its factorization.

442247167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75264, while the sum is 37.

The square root of 442247167 is about 21029.6734877173. The cubic root of 442247167 is about 761.8831227477.

The spelling of 442247167 in words is "four hundred forty-two million, two hundred forty-seven thousand, one hundred sixty-seven".