42317017 has 2 divisors, whose sum is σ = 42317018. Its totient is φ = 42317016.

The previous prime is 42316991. The next prime is 42317027. The reversal of 42317017 is 71071324.

It is a happy number.

42317017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35236096 + 7080921 = 5936^2 + 2661^2 .

It is a cyclic number.

It is not a de Polignac number, because 42317017 - 2⁷ = 42316889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42316982 and 42317000.

It is not a weakly prime, because it can be changed into another prime (42317027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21158508 + 21158509.

It is an arithmetic number, because the mean of its divisors is an integer number (21158509).

Almost surely, 2^42317017 is an apocalyptic number.

It is an amenable number.

42317017 is a deficient number, since it is larger than the sum of its proper divisors (1).

42317017 is an equidigital number, since it uses as much as digits as its factorization.

42317017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 42317017 is about 6505.1531111881. The cubic root of 42317017 is about 348.4750443045.

The spelling of 42317017 in words is "forty-two million, three hundred seventeen thousand, seventeen".