42350017 has 2 divisors, whose sum is σ = 42350018. Its totient is φ = 42350016.

The previous prime is 42349997. The next prime is 42350029. The reversal of 42350017 is 71005324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39388176 + 2961841 = 6276^2 + 1721^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42350017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42350017.

It is not a weakly prime, because it can be changed into another prime (42350057) 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, 21175008 + 21175009.

It is an arithmetic number, because the mean of its divisors is an integer number (21175009).

Almost surely, 2^42350017 is an apocalyptic number.

It is an amenable number.

42350017 is a deficient number, since it is larger than the sum of its proper divisors (1).

42350017 is an equidigital number, since it uses as much as digits as its factorization.

42350017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 42350017 is about 6507.6890675569. The cubic root of 42350017 is about 348.5656043149.

The spelling of 42350017 in words is "forty-two million, three hundred fifty thousand, seventeen".