417340991 has 2 divisors, whose sum is σ = 417340992. Its totient is φ = 417340990.

The previous prime is 417340951. The next prime is 417341047. The reversal of 417340991 is 199043714.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-417340991 is a prime.

It is a Chen prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (417340951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208670495 + 208670496.

It is an arithmetic number, because the mean of its divisors is an integer number (208670496).

Almost surely, 2^417340991 is an apocalyptic number.

417340991 is a deficient number, since it is larger than the sum of its proper divisors (1).

417340991 is an equidigital number, since it uses as much as digits as its factorization.

417340991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 417340991 is about 20428.9253510800. The cubic root of 417340991 is about 747.3034966300.

The spelling of 417340991 in words is "four hundred seventeen million, three hundred forty thousand, nine hundred ninety-one".