985765 has 8 divisors (see below), whose sum is σ = 1290528. Its totient is φ = 716880.

The previous prime is 985759. The next prime is 985781. The reversal of 985765 is 567589.

It is a happy number.

985765 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 not a de Polignac number, because 985765 - 2⁹ = 985253 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8907 + ... + 9016.

It is an arithmetic number, because the mean of its divisors is an integer number (161316).

2⁹⁸⁵⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

985765 is a deficient number, since it is larger than the sum of its proper divisors (304763).

985765 is a wasteful number, since it uses less digits than its factorization.

985765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17939.

The product of its digits is 75600, while the sum is 40.

The square root of 985765 is about 992.8569886947. The cubic root of 985765 is about 99.5232305211.

The spelling of 985765 in words is "nine hundred eighty-five thousand, seven hundred sixty-five".