427716659 has 2 divisors, whose sum is σ = 427716660. Its totient is φ = 427716658.

The previous prime is 427716649. The next prime is 427716661. The reversal of 427716659 is 956617724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427716659 - 2¹⁶ = 427651123 is a prime.

It is a super-3 number, since 3×427716659³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 427716661, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (427716649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213858329 + 213858330.

It is an arithmetic number, because the mean of its divisors is an integer number (213858330).

Almost surely, 2^427716659 is an apocalyptic number.

427716659 is a deficient number, since it is larger than the sum of its proper divisors (1).

427716659 is an equidigital number, since it uses as much as digits as its factorization.

427716659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 47.

The square root of 427716659 is about 20681.3118297655. The cubic root of 427716659 is about 753.4458676005.

The spelling of 427716659 in words is "four hundred twenty-seven million, seven hundred sixteen thousand, six hundred fifty-nine".