853117 has 4 divisors (see below), whose sum is σ = 855036. Its totient is φ = 851200.

The previous prime is 853103. The next prime is 853123. The reversal of 853117 is 711358.

853117 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 an emirpimes, since its reverse is a distinct semiprime: 711358 = 2 ⋅355679.

It can be written as a sum of positive squares in 2 ways, for example, as 527076 + 326041 = 726^2 + 571^2 .

It is a cyclic number.

It is not a de Polignac number, because 853117 - 2⁷ = 852989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 853091 and 853100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853187) 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, 93 + ... + 1309.

It is an arithmetic number, because the mean of its divisors is an integer number (213759).

2⁸⁵³¹¹⁷ is an apocalyptic number.

It is an amenable number.

853117 is a deficient number, since it is larger than the sum of its proper divisors (1919).

853117 is a wasteful number, since it uses less digits than its factorization.

853117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918.

The product of its digits is 840, while the sum is 25.

The square root of 853117 is about 923.6433294297. The cubic root of 853117 is about 94.8424720820.

The spelling of 853117 in words is "eight hundred fifty-three thousand, one hundred seventeen".