705752785 has 4 divisors (see below), whose sum is σ = 846903348. Its totient is φ = 564602224.

The previous prime is 705752771. The next prime is 705752791. The reversal of 705752785 is 587257507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 587257507 = 353 ⋅1663619.

It can be written as a sum of positive squares in 2 ways, for example, as 91853056 + 613899729 = 9584^2 + 24777^2 .

It is a cyclic number.

It is not a de Polignac number, because 705752785 - 2¹¹ = 705750737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70575274 + ... + 70575283.

It is an arithmetic number, because the mean of its divisors is an integer number (211725837).

Almost surely, 2^705752785 is an apocalyptic number.

It is an amenable number.

705752785 is a deficient number, since it is larger than the sum of its proper divisors (141150563).

705752785 is a wasteful number, since it uses less digits than its factorization.

705752785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141150562.

The product of its (nonzero) digits is 686000, while the sum is 46.

The square root of 705752785 is about 26566.0080742290. The cubic root of 705752785 is about 890.3297120348.

The spelling of 705752785 in words is "seven hundred five million, seven hundred fifty-two thousand, seven hundred eighty-five".