705866 has 16 divisors (see below), whose sum is σ = 1222656. Its totient is φ = 299376.

The previous prime is 705863. The next prime is 705871. The reversal of 705866 is 668507.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 705866.

It is not an unprimeable number, because it can be changed into a prime (705863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1580 + ... + 1976.

It is an arithmetic number, because the mean of its divisors is an integer number (76416).

2⁷⁰⁵⁸⁶⁶ is an apocalyptic number.

705866 is a deficient number, since it is larger than the sum of its proper divisors (516790).

705866 is a wasteful number, since it uses less digits than its factorization.

705866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 705866 is about 840.1583184139. The cubic root of 705866 is about 89.0377317604.

The spelling of 705866 in words is "seven hundred five thousand, eight hundred sixty-six".