243698 has 24 divisors (see below), whose sum is σ = 456768. Its totient is φ = 95472.

The previous prime is 243673. The next prime is 243701. The reversal of 243698 is 896342.

It is a super-3 number, since 3×243698³ = 43418733353353176, which contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2315 + ... + 2417.

It is an arithmetic number, because the mean of its divisors is an integer number (19032).

2²⁴³⁶⁹⁸ is an apocalyptic number.

243698 is a deficient number, since it is larger than the sum of its proper divisors (213070).

243698 is a wasteful number, since it uses less digits than its factorization.

243698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 125 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 243698 is about 493.6577761972. The cubic root of 243698 is about 62.4622064843.

The spelling of 243698 in words is "two hundred forty-three thousand, six hundred ninety-eight".