705808 has 20 divisors (see below), whose sum is σ = 1412608. Its totient is φ = 341280.

The previous prime is 705787. The next prime is 705821. The reversal of 705808 is 808507.

705808 is an admirable number.

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, 216 + ... + 1207.

2⁷⁰⁵⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

705808 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

705808 is a wasteful number, since it uses less digits than its factorization.

705808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462 (or 1456 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 705808 is about 840.1238004009. The cubic root of 705808 is about 89.0352929926.

The spelling of 705808 in words is "seven hundred five thousand, eight hundred eight".