705769 has 2 divisors, whose sum is σ = 705770. Its totient is φ = 705768.

The previous prime is 705763. The next prime is 705779. The reversal of 705769 is 967507.

705769 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., 705600 + 169 = 840^2 + 13^2 .

It is an emirp because it is prime and its reverse (967507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 705769 - 2⁵ = 705737 is a prime.

It is a super-2 number, since 2×705769² = 996219762722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (705763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352884 + 352885.

It is an arithmetic number, because the mean of its divisors is an integer number (352885).

2⁷⁰⁵⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

705769 is a deficient number, since it is larger than the sum of its proper divisors (1).

705769 is an equidigital number, since it uses as much as digits as its factorization.

705769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 705769 is about 840.1005892154. The cubic root of 705769 is about 89.0336530563.

The spelling of 705769 in words is "seven hundred five thousand, seven hundred sixty-nine".