853836 has 12 divisors (see below), whose sum is σ = 1992312. Its totient is φ = 284608.

The previous prime is 853823. The next prime is 853837. The reversal of 853836 is 638358.

853836 = 304² + 305² + ... + 312².

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 853797 and 853806.

It is not an unprimeable number, because it can be changed into a prime (853837) 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, 35565 + ... + 35588.

It is an arithmetic number, because the mean of its divisors is an integer number (166026).

2⁸⁵³⁸³⁶ is an apocalyptic number.

It is an amenable number.

853836 is an abundant number, since it is smaller than the sum of its proper divisors (1138476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

853836 is a wasteful number, since it uses less digits than its factorization.

853836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71160 (or 71158 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 853836 is about 924.0324669621. The cubic root of 853836 is about 94.8691087525.

The spelling of 853836 in words is "eight hundred fifty-three thousand, eight hundred thirty-six".