705608 has 16 divisors (see below), whose sum is σ = 1332780. Its totient is φ = 350208.

The previous prime is 705559. The next prime is 705613. The reversal of 705608 is 806507.

It can be written as a sum of positive squares in 2 ways, for example, as 702244 + 3364 = 838^2 + 58^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1316 + ... + 1772.

2⁷⁰⁵⁶⁰⁸ is an apocalyptic number.

It is an amenable number.

705608 is a deficient number, since it is larger than the sum of its proper divisors (627172).

705608 is a wasteful number, since it uses less digits than its factorization.

705608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 652 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 705608 is about 840.0047618913. The cubic root of 705608 is about 89.0268824235.

The spelling of 705608 in words is "seven hundred five thousand, six hundred eight".