236985 has 32 divisors (see below), whose sum is σ = 452352. Its totient is φ = 103680.

The previous prime is 236983. The next prime is 236993. The reversal of 236985 is 589632.

It is a happy number.

236985 is nontrivially palindromic in base 13.

It is not a de Polignac number, because 236985 - 2¹ = 236983 is a prime.

It is a d-powerful number, because it can be written as 2⁶ + 3¹¹ + 9⁵ + 6² + 8² + 5⁴ .

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

It is a Curzon number.

236985 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 236985.

It is not an unprimeable number, because it can be changed into a prime (236981) 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, 3855 + ... + 3915.

It is an arithmetic number, because the mean of its divisors is an integer number (14136).

2²³⁶⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

236985 is a deficient number, since it is larger than the sum of its proper divisors (215367).

236985 is a wasteful number, since it uses less digits than its factorization.

236985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113.

The product of its digits is 12960, while the sum is 33.

The square root of 236985 is about 486.8110516412. The cubic root of 236985 is about 61.8833220110.

It can be divided in two parts, 236 and 985, that added together give a palindrome (1221).

The spelling of 236985 in words is "two hundred thirty-six thousand, nine hundred eighty-five".