985705 has 8 divisors (see below), whose sum is σ = 1351872. Its totient is φ = 675888.

The previous prime is 985703. The next prime is 985709. The reversal of 985705 is 507589.

985705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 985705 - 2¹ = 985703 is a prime.

It is a super-2 number, since 2×985705² = 1943228694050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (985703) 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, 14047 + ... + 14116.

It is an arithmetic number, because the mean of its divisors is an integer number (168984).

2⁹⁸⁵⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

985705 is a deficient number, since it is larger than the sum of its proper divisors (366167).

985705 is a wasteful number, since it uses less digits than its factorization.

985705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28175.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 985705 is about 992.8267724029. The cubic root of 985705 is about 99.5212112721.

The spelling of 985705 in words is "nine hundred eighty-five thousand, seven hundred five".