985798 has 8 divisors (see below), whose sum is σ = 1613160. Its totient is φ = 448080.

The previous prime is 985783. The next prime is 985799. The reversal of 985798 is 897589.

985798 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (985799) by changing a digit.

985798 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22383 + ... + 22426.

It is an arithmetic number, because the mean of its divisors is an integer number (201645).

2⁹⁸⁵⁷⁹⁸ is an apocalyptic number.

985798 is a deficient number, since it is larger than the sum of its proper divisors (627362).

985798 is a wasteful number, since it uses less digits than its factorization.

985798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44822.

The product of its digits is 181440, while the sum is 46.

The square root of 985798 is about 992.8736072633. The cubic root of 985798 is about 99.5243410731.

Subtracting from 985798 its reverse (897589), we obtain a square (88209 = 297²).

The spelling of 985798 in words is "nine hundred eighty-five thousand, seven hundred ninety-eight".