233389 has 6 divisors (see below), whose sum is σ = 252906. Its totient is φ = 215280.

The previous prime is 233371. The next prime is 233407. The reversal of 233389 is 983332.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (233371) and next prime (233407).

It can be written as a sum of positive squares in 3 ways, for example, as 100 + 233289 = 10^2 + 483^2 .

It is not a de Polignac number, because 233389 - 2⁵ = 233357 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 522 + ... + 859.

It is an arithmetic number, because the mean of its divisors is an integer number (42151).

2²³³³⁸⁹ is an apocalyptic number.

It is an amenable number.

233389 is a deficient number, since it is larger than the sum of its proper divisors (19517).

233389 is a wasteful number, since it uses less digits than its factorization.

233389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407 (or 1394 counting only the distinct ones).

The product of its digits is 3888, while the sum is 28.

The square root of 233389 is about 483.1035085776. The cubic root of 233389 is about 61.5687204155.

The spelling of 233389 in words is "two hundred thirty-three thousand, three hundred eighty-nine".