853205 has 4 divisors (see below), whose sum is σ = 1023852. Its totient is φ = 682560.

The previous prime is 853189. The next prime is 853211. The reversal of 853205 is 502358.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 502358 = 2 ⋅251179.

It can be written as a sum of positive squares in 2 ways, for example, as 145924 + 707281 = 382^2 + 841^2 .

It is not a de Polignac number, because 853205 - 2⁴ = 853189 is a prime.

It is a Duffinian number.

It is a congruent 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, 85316 + ... + 85325.

It is an arithmetic number, because the mean of its divisors is an integer number (255963).

2⁸⁵³²⁰⁵ is an apocalyptic number.

It is an amenable number.

853205 is a deficient number, since it is larger than the sum of its proper divisors (170647).

853205 is a wasteful number, since it uses less digits than its factorization.

853205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170646.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 853205 is about 923.6909656373. The cubic root of 853205 is about 94.8457330066.

The spelling of 853205 in words is "eight hundred fifty-three thousand, two hundred five".