705165641 has 2 divisors, whose sum is σ = 705165642. Its totient is φ = 705165640.

The previous prime is 705165611. The next prime is 705165709. The reversal of 705165641 is 146561507.

705165641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 648975625 + 56190016 = 25475^2 + 7496^2 .

It is a cyclic number.

It is not a de Polignac number, because 705165641 - 2¹⁴ = 705149257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (705165611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352582820 + 352582821.

It is an arithmetic number, because the mean of its divisors is an integer number (352582821).

Almost surely, 2^705165641 is an apocalyptic number.

It is an amenable number.

705165641 is a deficient number, since it is larger than the sum of its proper divisors (1).

705165641 is an equidigital number, since it uses as much as digits as its factorization.

705165641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 705165641 is about 26554.9551119937. The cubic root of 705165641 is about 890.0827432224.

The spelling of 705165641 in words is "seven hundred five million, one hundred sixty-five thousand, six hundred forty-one".