42417943 has 2 divisors, whose sum is σ = 42417944. Its totient is φ = 42417942.

The previous prime is 42417929. The next prime is 42417953. The reversal of 42417943 is 34971424.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42417943 - 2¹³ = 42409751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42417899 and 42417908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42417953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21208971 + 21208972.

It is an arithmetic number, because the mean of its divisors is an integer number (21208972).

Almost surely, 2^42417943 is an apocalyptic number.

42417943 is a deficient number, since it is larger than the sum of its proper divisors (1).

42417943 is an equidigital number, since it uses as much as digits as its factorization.

42417943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 42417943 is about 6512.9058798665. The cubic root of 42417943 is about 348.7518617767.

The spelling of 42417943 in words is "forty-two million, four hundred seventeen thousand, nine hundred forty-three".