705656 has 16 divisors (see below), whose sum is σ = 1512240. Its totient is φ = 302400.

The previous prime is 705643. The next prime is 705689. The reversal of 705656 is 656507.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6245 + ... + 6356.

It is an arithmetic number, because the mean of its divisors is an integer number (94515).

2⁷⁰⁵⁶⁵⁶ is an apocalyptic number.

It is an amenable number.

705656 is an abundant number, since it is smaller than the sum of its proper divisors (806584).

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

705656 is a wasteful number, since it uses less digits than its factorization.

705656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12614 (or 12610 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 705656 is about 840.0333326720. The cubic root of 705656 is about 89.0289011050.

The spelling of 705656 in words is "seven hundred five thousand, six hundred fifty-six".