842307617 has 2 divisors, whose sum is σ = 842307618. Its totient is φ = 842307616.

The previous prime is 842307497. The next prime is 842307667. The reversal of 842307617 is 716703248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 461433361 + 380874256 = 21481^2 + 19516^2 .

It is a cyclic number.

It is not a de Polignac number, because 842307617 - 2¹⁶ = 842242081 is a prime.

It is not a weakly prime, because it can be changed into another prime (842307667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421153808 + 421153809.

It is an arithmetic number, because the mean of its divisors is an integer number (421153809).

Almost surely, 2^842307617 is an apocalyptic number.

It is an amenable number.

842307617 is a deficient number, since it is larger than the sum of its proper divisors (1).

842307617 is an equidigital number, since it uses as much as digits as its factorization.

842307617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 842307617 is about 29022.5363640051. The cubic root of 842307617 is about 944.4020243887.

The spelling of 842307617 in words is "eight hundred forty-two million, three hundred seven thousand, six hundred seventeen".