417662489 has 2 divisors, whose sum is σ = 417662490. Its totient is φ = 417662488.

The previous prime is 417662471. The next prime is 417662513. The reversal of 417662489 is 984266714.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216590089 + 201072400 = 14717^2 + 14180^2 .

It is a cyclic number.

It is not a de Polignac number, because 417662489 - 2¹² = 417658393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (417662459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208831244 + 208831245.

It is an arithmetic number, because the mean of its divisors is an integer number (208831245).

Almost surely, 2^417662489 is an apocalyptic number.

It is an amenable number.

417662489 is a deficient number, since it is larger than the sum of its proper divisors (1).

417662489 is an equidigital number, since it uses as much as digits as its factorization.

417662489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 47.

The square root of 417662489 is about 20436.7925320976. The cubic root of 417662489 is about 747.4953420812.

The spelling of 417662489 in words is "four hundred seventeen million, six hundred sixty-two thousand, four hundred eighty-nine".