705885 has 8 divisors (see below), whose sum is σ = 1129440. Its totient is φ = 376464.

The previous prime is 705883. The next prime is 705899. The reversal of 705885 is 588507.

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

It is not a de Polignac number, because 705885 - 2¹ = 705883 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

705885 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 705885.

It is not an unprimeable number, because it can be changed into a prime (705883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23515 + ... + 23544.

It is an arithmetic number, because the mean of its divisors is an integer number (141180).

2⁷⁰⁵⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

705885 is a deficient number, since it is larger than the sum of its proper divisors (423555).

705885 is a wasteful number, since it uses less digits than its factorization.

705885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47067.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 705885 is about 840.1696257304. The cubic root of 705885 is about 89.0385306380.

The spelling of 705885 in words is "seven hundred five thousand, eight hundred eighty-five".