705517427 has 2 divisors, whose sum is σ = 705517428. Its totient is φ = 705517426.

The previous prime is 705517343. The next prime is 705517429. The reversal of 705517427 is 724715507.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 705517427 - 2¹⁰ = 705516403 is a prime.

Together with 705517429, 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 (705517429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352758713 + 352758714.

It is an arithmetic number, because the mean of its divisors is an integer number (352758714).

Almost surely, 2^705517427 is an apocalyptic number.

705517427 is a deficient number, since it is larger than the sum of its proper divisors (1).

705517427 is an equidigital number, since it uses as much as digits as its factorization.

705517427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68600, while the sum is 38.

The square root of 705517427 is about 26561.5780216462. The cubic root of 705517427 is about 890.2307304827.

The spelling of 705517427 in words is "seven hundred five million, five hundred seventeen thousand, four hundred twenty-seven".