233869 has 4 divisors (see below), whose sum is σ = 247644. Its totient is φ = 220096.

The previous prime is 233861. The next prime is 233879. The reversal of 233869 is 968332.

It is a happy number.

233869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 84100 + 149769 = 290^2 + 387^2 .

It is a cyclic number.

It is not a de Polignac number, because 233869 - 2³ = 233861 is a prime.

It is a super-2 number, since 2×233869² = 109389418322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 233869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6862 + ... + 6895.

It is an arithmetic number, because the mean of its divisors is an integer number (61911).

2²³³⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

233869 is a deficient number, since it is larger than the sum of its proper divisors (13775).

233869 is a wasteful number, since it uses less digits than its factorization.

233869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13774.

The product of its digits is 7776, while the sum is 31.

The square root of 233869 is about 483.6000413565. The cubic root of 233869 is about 61.6108999939.

The spelling of 233869 in words is "two hundred thirty-three thousand, eight hundred sixty-nine".