427716767 has 2 divisors, whose sum is σ = 427716768. Its totient is φ = 427716766.

The previous prime is 427716721. The next prime is 427716791. The reversal of 427716767 is 767617724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427716767 - 2⁸ = 427716511 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427716067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213858383 + 213858384.

It is an arithmetic number, because the mean of its divisors is an integer number (213858384).

Almost surely, 2^427716767 is an apocalyptic number.

427716767 is a deficient number, since it is larger than the sum of its proper divisors (1).

427716767 is an equidigital number, since it uses as much as digits as its factorization.

427716767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691488, while the sum is 47.

The square root of 427716767 is about 20681.3144408183. The cubic root of 427716767 is about 753.4459310164.

The spelling of 427716767 in words is "four hundred twenty-seven million, seven hundred sixteen thousand, seven hundred sixty-seven".