444442147 has 2 divisors, whose sum is σ = 444442148. Its totient is φ = 444442146.

The previous prime is 444442127. The next prime is 444442183. The reversal of 444442147 is 741244444.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 444442147 - 2¹¹ = 444440099 is a prime.

It is not a weakly prime, because it can be changed into another prime (444442127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222221073 + 222221074.

It is an arithmetic number, because the mean of its divisors is an integer number (222221074).

Almost surely, 2^444442147 is an apocalyptic number.

444442147 is a deficient number, since it is larger than the sum of its proper divisors (1).

444442147 is an equidigital number, since it uses as much as digits as its factorization.

444442147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57344, while the sum is 34.

The square root of 444442147 is about 21081.7965790395. The cubic root of 444442147 is about 763.1415134079.

The spelling of 444442147 in words is "four hundred forty-four million, four hundred forty-two thousand, one hundred forty-seven".