42316217 has 2 divisors, whose sum is σ = 42316218. Its totient is φ = 42316216.

The previous prime is 42316199. The next prime is 42316229. The reversal of 42316217 is 71261324.

42316217 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., 24810361 + 17505856 = 4981^2 + 4184^2 .

It is a cyclic number.

It is not a de Polignac number, because 42316217 - 2¹² = 42312121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42316237) 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, 21158108 + 21158109.

It is an arithmetic number, because the mean of its divisors is an integer number (21158109).

Almost surely, 2^42316217 is an apocalyptic number.

It is an amenable number.

42316217 is a deficient number, since it is larger than the sum of its proper divisors (1).

42316217 is an equidigital number, since it uses as much as digits as its factorization.

42316217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 26.

The square root of 42316217 is about 6505.0916211841. The cubic root of 42316217 is about 348.4728483259.

The spelling of 42316217 in words is "forty-two million, three hundred sixteen thousand, two hundred seventeen".