2236689 has 24 divisors (see below), whose sum is σ = 3977792. Its totient is φ = 1179360.

The previous prime is 2236667. The next prime is 2236693. The reversal of 2236689 is 9866322.

2236689 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 2236689 - 2⁵ = 2236657 is a prime.

2236689 is a lucky number.

It is a plaindrome in base 10.

It is a nialpdrome in base 16.

It is a zygodrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (2236189) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 547 + ... + 2184.

2^2236689 is an apocalyptic number.

It is an amenable number.

2236689 is a deficient number, since it is larger than the sum of its proper divisors (1741103).

2236689 is a wasteful number, since it uses less digits than its factorization.

2236689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757 (or 2754 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 2236689 is about 1495.5564181936. The cubic root of 2236689 is about 130.7781533527.

The spelling of 2236689 in words is "two million, two hundred thirty-six thousand, six hundred eighty-nine".