427716511 has 2 divisors, whose sum is σ = 427716512. Its totient is φ = 427716510.

The previous prime is 427716491. The next prime is 427716577. The reversal of 427716511 is 115617724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427716511 - 2¹⁷ = 427585439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427713511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213858255 + 213858256.

It is an arithmetic number, because the mean of its divisors is an integer number (213858256).

Almost surely, 2^427716511 is an apocalyptic number.

427716511 is a deficient number, since it is larger than the sum of its proper divisors (1).

427716511 is an equidigital number, since it uses as much as digits as its factorization.

427716511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 34.

The square root of 427716511 is about 20681.3082516556. The cubic root of 427716511 is about 753.4457806972.

The spelling of 427716511 in words is "four hundred twenty-seven million, seven hundred sixteen thousand, five hundred eleven".