427677317 has 2 divisors, whose sum is σ = 427677318. Its totient is φ = 427677316.

The previous prime is 427677277. The next prime is 427677319. The reversal of 427677317 is 713776724.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 299670721 + 128006596 = 17311^2 + 11314^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427677317 is a prime.

Together with 427677319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427677319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213838658 + 213838659.

It is an arithmetic number, because the mean of its divisors is an integer number (213838659).

Almost surely, 2^427677317 is an apocalyptic number.

It is an amenable number.

427677317 is a deficient number, since it is larger than the sum of its proper divisors (1).

427677317 is an equidigital number, since it uses as much as digits as its factorization.

427677317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345744, while the sum is 44.

The square root of 427677317 is about 20680.3606593309. The cubic root of 427677317 is about 753.4227658768.

The spelling of 427677317 in words is "four hundred twenty-seven million, six hundred seventy-seven thousand, three hundred seventeen".