705968591 has 2 divisors, whose sum is σ = 705968592. Its totient is φ = 705968590.

The previous prime is 705968561. The next prime is 705968597. The reversal of 705968591 is 195869507.

It is a happy number.

705968591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (195869507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 705968591 - 2¹⁰ = 705967567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (705968597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352984295 + 352984296.

It is an arithmetic number, because the mean of its divisors is an integer number (352984296).

Almost surely, 2^705968591 is an apocalyptic number.

705968591 is a deficient number, since it is larger than the sum of its proper divisors (1).

705968591 is an equidigital number, since it uses as much as digits as its factorization.

705968591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 680400, while the sum is 50.

The square root of 705968591 is about 26570.0694579446. The cubic root of 705968591 is about 890.4204515105.

The spelling of 705968591 in words is "seven hundred five million, nine hundred sixty-eight thousand, five hundred ninety-one".