442386617 has 2 divisors, whose sum is σ = 442386618. Its totient is φ = 442386616.

The previous prime is 442386611. The next prime is 442386641. The reversal of 442386617 is 716683244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 419881081 + 22505536 = 20491^2 + 4744^2 .

It is a cyclic number.

It is not a de Polignac number, because 442386617 - 2¹⁴ = 442370233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (442386611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221193308 + 221193309.

It is an arithmetic number, because the mean of its divisors is an integer number (221193309).

Almost surely, 2^442386617 is an apocalyptic number.

It is an amenable number.

442386617 is a deficient number, since it is larger than the sum of its proper divisors (1).

442386617 is an equidigital number, since it uses as much as digits as its factorization.

442386617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 41.

The square root of 442386617 is about 21032.9887795339. The cubic root of 442386617 is about 761.9631936856.

The spelling of 442386617 in words is "four hundred forty-two million, three hundred eighty-six thousand, six hundred seventeen".