288841 has 4 divisors (see below), whose sum is σ = 330112. Its totient is φ = 247572.

The previous prime is 288839. The next prime is 288851. The reversal of 288841 is 148882.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 148882 = 2 ⋅74441.

It is a cyclic number.

It is not a de Polignac number, because 288841 - 2¹ = 288839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (288851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20625 + ... + 20638.

It is an arithmetic number, because the mean of its divisors is an integer number (82528).

2²⁸⁸⁸⁴¹ is an apocalyptic number.

It is an amenable number.

288841 is a deficient number, since it is larger than the sum of its proper divisors (41271).

288841 is an equidigital number, since it uses as much as digits as its factorization.

288841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41270.

The product of its digits is 4096, while the sum is 31.

The square root of 288841 is about 537.4392988980. The cubic root of 288841 is about 66.1027630843.

The spelling of 288841 in words is "two hundred eighty-eight thousand, eight hundred forty-one".