417342661 has 2 divisors, whose sum is σ = 417342662. Its totient is φ = 417342660.

The previous prime is 417342643. The next prime is 417342749. The reversal of 417342661 is 166243714.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 358344900 + 58997761 = 18930^2 + 7681^2 .

It is a cyclic number.

It is not a de Polignac number, because 417342661 - 2¹¹ = 417340613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (417342631) 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, 208671330 + 208671331.

It is an arithmetic number, because the mean of its divisors is an integer number (208671331).

Almost surely, 2^417342661 is an apocalyptic number.

It is an amenable number.

417342661 is a deficient number, since it is larger than the sum of its proper divisors (1).

417342661 is an equidigital number, since it uses as much as digits as its factorization.

417342661 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 417342661 is about 20428.9662244569. The cubic root of 417342661 is about 747.3044934130.

The spelling of 417342661 in words is "four hundred seventeen million, three hundred forty-two thousand, six hundred sixty-one".