705666773 has 16 divisors (see below), whose sum is σ = 835296000. Its totient is φ = 583293312.

The previous prime is 705666769. The next prime is 705666781. The reversal of 705666773 is 377666507.

It is not a de Polignac number, because 705666773 - 2² = 705666769 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705663773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227648 + ... + 230726.

It is an arithmetic number, because the mean of its divisors is an integer number (52206000).

Almost surely, 2^705666773 is an apocalyptic number.

It is an amenable number.

705666773 is a deficient number, since it is larger than the sum of its proper divisors (129629227).

705666773 is a wasteful number, since it uses less digits than its factorization.

705666773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4244.

The product of its (nonzero) digits is 1111320, while the sum is 47.

The square root of 705666773 is about 26564.3891892887. The cubic root of 705666773 is about 890.2935416024.

The spelling of 705666773 in words is "seven hundred five million, six hundred sixty-six thousand, seven hundred seventy-three".