853911 has 12 divisors (see below), whose sum is σ = 1250080. Its totient is φ = 561600.

The previous prime is 853903. The next prime is 853913. The reversal of 853911 is 119358.

It is not a de Polignac number, because 853911 - 2³ = 853903 is a prime.

It is a Duffinian number.

853911 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853913) 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 11 ways as a sum of consecutive naturals, for example, 111 + ... + 1311.

2⁸⁵³⁹¹¹ is an apocalyptic number.

853911 is a deficient number, since it is larger than the sum of its proper divisors (396169).

853911 is a wasteful number, since it uses less digits than its factorization.

853911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286 (or 1283 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 853911 is about 924.0730490605. The cubic root of 853911 is about 94.8718864034.

It can be divided in two parts, 853 and 911, that added together give a square (1764 = 42²).

The spelling of 853911 in words is "eight hundred fifty-three thousand, nine hundred eleven".