705445 has 8 divisors (see below), whose sum is σ = 911736. Its totient is φ = 520896.

The previous prime is 705437. The next prime is 705461. The reversal of 705445 is 544507.

705445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14884 + 690561 = 122^2 + 831^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 705445 - 2³ = 705437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5362 + ... + 5491.

It is an arithmetic number, because the mean of its divisors is an integer number (113967).

2⁷⁰⁵⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

705445 is a deficient number, since it is larger than the sum of its proper divisors (206291).

705445 is a wasteful number, since it uses less digits than its factorization.

705445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10871.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 705445 is about 839.9077330279. The cubic root of 705445 is about 89.0200266342.

The spelling of 705445 in words is "seven hundred five thousand, four hundred forty-five".