288329 has 4 divisors (see below), whose sum is σ = 289476. Its totient is φ = 287184.

The previous prime is 288317. The next prime is 288349. The reversal of 288329 is 923882.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 76729 + 211600 = 277^2 + 460^2 .

It is a cyclic number.

It is not a de Polignac number, because 288329 - 2⁴ = 288313 is a prime.

It is a super-2 number, since 2×288329² = 166267224482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 288295 and 288304.

It is not an unprimeable number, because it can be changed into a prime (288349) 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, 14 + ... + 759.

It is an arithmetic number, because the mean of its divisors is an integer number (72369).

2²⁸⁸³²⁹ is an apocalyptic number.

It is an amenable number.

288329 is a deficient number, since it is larger than the sum of its proper divisors (1147).

288329 is an equidigital number, since it uses as much as digits as its factorization.

288329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146.

The product of its digits is 6912, while the sum is 32.

The square root of 288329 is about 536.9627547605. The cubic root of 288329 is about 66.0636820303.

The spelling of 288329 in words is "two hundred eighty-eight thousand, three hundred twenty-nine".