42898717 has 2 divisors, whose sum is σ = 42898718. Its totient is φ = 42898716.

The previous prime is 42898711. The next prime is 42898721. The reversal of 42898717 is 71789824.

42898717 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., 35748441 + 7150276 = 5979^2 + 2674^2 .

It is a cyclic number.

It is not a de Polignac number, because 42898717 - 2⁷ = 42898589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42898711) 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, 21449358 + 21449359.

It is an arithmetic number, because the mean of its divisors is an integer number (21449359).

Almost surely, 2^42898717 is an apocalyptic number.

It is an amenable number.

42898717 is a deficient number, since it is larger than the sum of its proper divisors (1).

42898717 is an equidigital number, since it uses as much as digits as its factorization.

42898717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 46.

The square root of 42898717 is about 6549.7112150079. The cubic root of 42898717 is about 350.0645241584.

The spelling of 42898717 in words is "forty-two million, eight hundred ninety-eight thousand, seven hundred seventeen".