985385 has 4 divisors (see below), whose sum is σ = 1182468. Its totient is φ = 788304.

The previous prime is 985379. The next prime is 985399. The reversal of 985385 is 583589.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583589 = 457 ⋅1277.

It can be written as a sum of positive squares in 2 ways, for example, as 659344 + 326041 = 812^2 + 571^2 .

It is a cyclic number.

It is not a de Polignac number, because 985385 - 2⁸ = 985129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98534 + ... + 98543.

It is an arithmetic number, because the mean of its divisors is an integer number (295617).

2⁹⁸⁵³⁸⁵ is an apocalyptic number.

It is an amenable number.

985385 is a deficient number, since it is larger than the sum of its proper divisors (197083).

985385 is a wasteful number, since it uses less digits than its factorization.

985385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197082.

The product of its digits is 43200, while the sum is 38.

The square root of 985385 is about 992.6656033126. The cubic root of 985385 is about 99.5104405599.

The spelling of 985385 in words is "nine hundred eighty-five thousand, three hundred eighty-five".