65836 has 12 divisors (see below), whose sum is σ = 117040. Its totient is φ = 32400.

The previous prime is 65831. The next prime is 65837. The reversal of 65836 is 63856.

65836 = T₂₀₈ + T₂₀₉ + T₂₁₀.

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

It is a plaindrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (65831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361 + ... + 511.

2⁶⁵⁸³⁶ is an apocalyptic number.

65836 is the 210-th centered triangular number.

It is an amenable number.

65836 is a deficient number, since it is larger than the sum of its proper divisors (51204).

65836 is a wasteful number, since it uses less digits than its factorization.

65836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 262 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 65836 is about 256.5852684781. The cubic root of 65836 is about 40.3788995457.

Subtracting from 65836 its product of digits (4320), we obtain a palindrome (61516).

The spelling of 65836 in words is "sixty-five thousand, eight hundred thirty-six".