985199 has 4 divisors (see below), whose sum is σ = 1011864. Its totient is φ = 958536.

The previous prime is 985181. The next prime is 985213. The reversal of 985199 is 991589.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991589 = 271 ⋅3659.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-985199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13277 + ... + 13350.

It is an arithmetic number, because the mean of its divisors is an integer number (252966).

2⁹⁸⁵¹⁹⁹ is an apocalyptic number.

985199 is a deficient number, since it is larger than the sum of its proper divisors (26665).

985199 is a wasteful number, since it uses less digits than its factorization.

985199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26664.

The product of its digits is 29160, while the sum is 41.

The square root of 985199 is about 992.5719117525. The cubic root of 985199 is about 99.5041790119.

The spelling of 985199 in words is "nine hundred eighty-five thousand, one hundred ninety-nine".