705845 has 24 divisors (see below), whose sum is σ = 1023264. Its totient is φ = 465696.

The previous prime is 705841. The next prime is 705863. The reversal of 705845 is 548507.

705845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 705845 - 2² = 705841 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10502 + ... + 10568.

It is an arithmetic number, because the mean of its divisors is an integer number (42636).

2⁷⁰⁵⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

705845 is a deficient number, since it is larger than the sum of its proper divisors (317419).

705845 is a wasteful number, since it uses less digits than its factorization.

705845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 705845 is about 840.1458206764. The cubic root of 705845 is about 89.0368487737.

The spelling of 705845 in words is "seven hundred five thousand, eight hundred forty-five".