985769 has 4 divisors (see below), whose sum is σ = 1017600. Its totient is φ = 953940.

The previous prime is 985759. The next prime is 985781. The reversal of 985769 is 967589.

985769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 985769 - 2¹⁶ = 920233 is a prime.

It is a super-2 number, since 2×985769² = 1943481042722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 985769.

It is not an unprimeable number, because it can be changed into a prime (985709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15869 + ... + 15930.

It is an arithmetic number, because the mean of its divisors is an integer number (254400).

2⁹⁸⁵⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

985769 is a deficient number, since it is larger than the sum of its proper divisors (31831).

985769 is a wasteful number, since it uses less digits than its factorization.

985769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31830.

The product of its digits is 136080, while the sum is 44.

The square root of 985769 is about 992.8590030815. The cubic root of 985769 is about 99.5233651348.

The spelling of 985769 in words is "nine hundred eighty-five thousand, seven hundred sixty-nine".