243696 has 20 divisors (see below), whose sum is σ = 629672. Its totient is φ = 81216.

The previous prime is 243673. The next prime is 243701. The reversal of 243696 is 696342.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 2⁵ + 4⁸ + 6² + 3¹¹ + 9³ + 6³ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2491 + ... + 2586.

2²⁴³⁶⁹⁶ is an apocalyptic number.

It is an amenable number.

243696 is an abundant number, since it is smaller than the sum of its proper divisors (385976).

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

243696 is a wasteful number, since it uses less digits than its factorization.

243696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5088 (or 5082 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 243696 is about 493.6557504983. The cubic root of 243696 is about 62.4620356106.

It can be divided in two parts, 243 and 696, that added together give a palindrome (939).

The spelling of 243696 in words is "two hundred forty-three thousand, six hundred ninety-six".