427716577 has 2 divisors, whose sum is σ = 427716578. Its totient is φ = 427716576.

The previous prime is 427716511. The next prime is 427716587. The reversal of 427716577 is 775617724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 382437136 + 45279441 = 19556^2 + 6729^2 .

It is a cyclic number.

It is not a de Polignac number, because 427716577 - 2⁷ = 427716449 is a prime.

It is not a weakly prime, because it can be changed into another prime (427716587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213858288 + 213858289.

It is an arithmetic number, because the mean of its divisors is an integer number (213858289).

Almost surely, 2^427716577 is an apocalyptic number.

It is an amenable number.

427716577 is a deficient number, since it is larger than the sum of its proper divisors (1).

427716577 is an equidigital number, since it uses as much as digits as its factorization.

427716577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576240, while the sum is 46.

The square root of 427716577 is about 20681.3098472993. The cubic root of 427716577 is about 753.4458194514.

The spelling of 427716577 in words is "four hundred twenty-seven million, seven hundred sixteen thousand, five hundred seventy-seven".