836385 has 32 divisors (see below), whose sum is σ = 1510272. Its totient is φ = 391680.

The previous prime is 836377. The next prime is 836387. The reversal of 836385 is 583638.

It is not a de Polignac number, because 836385 - 2³ = 836377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 836385.

It is not an unprimeable number, because it can be changed into a prime (836387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6037 + ... + 6173.

It is an arithmetic number, because the mean of its divisors is an integer number (47196).

2⁸³⁶³⁸⁵ is an apocalyptic number.

It is an amenable number.

836385 is a deficient number, since it is larger than the sum of its proper divisors (673887).

836385 is a wasteful number, since it uses less digits than its factorization.

836385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193.

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

The square root of 836385 is about 914.5408684143. The cubic root of 836385 is about 94.2183320870.

It can be divided in two parts, 8363 and 85, that added together give a palindrome (8448).

The spelling of 836385 in words is "eight hundred thirty-six thousand, three hundred eighty-five".