705765563 has 4 divisors (see below), whose sum is σ = 705820008. Its totient is φ = 705711120.

The previous prime is 705765551. The next prime is 705765601. The reversal of 705765563 is 365567507.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 365567507 = 17 ⋅21503971.

It is a cyclic number.

It is not a de Polignac number, because 705765563 - 2¹⁰ = 705764539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (705765503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4703 + ... + 37863.

It is an arithmetic number, because the mean of its divisors is an integer number (176455002).

Almost surely, 2^705765563 is an apocalyptic number.

705765563 is a deficient number, since it is larger than the sum of its proper divisors (54445).

705765563 is a wasteful number, since it uses less digits than its factorization.

705765563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54444.

The product of its (nonzero) digits is 661500, while the sum is 44.

The square root of 705765563 is about 26566.2485684374. The cubic root of 705765563 is about 890.3350852876.

The spelling of 705765563 in words is "seven hundred five million, seven hundred sixty-five thousand, five hundred sixty-three".