288859 has 6 divisors (see below), whose sum is σ = 298284. Its totient is φ = 279720.

The previous prime is 288853. The next prime is 288877. The reversal of 288859 is 958882.

288859 = T₁₀₆ + T₁₀₇ + ... + T₁₄₂.

It is a happy number.

It is not a de Polignac number, because 288859 - 2³ = 288851 is a prime.

It is a Duffinian number.

288859 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (288851) 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, 1264 + ... + 1474.

It is an arithmetic number, because the mean of its divisors is an integer number (49714).

2²⁸⁸⁸⁵⁹ is an apocalyptic number.

288859 is a deficient number, since it is larger than the sum of its proper divisors (9425).

288859 is an equidigital number, since it uses as much as digits as its factorization.

288859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 248 counting only the distinct ones).

The product of its digits is 46080, while the sum is 40.

The square root of 288859 is about 537.4560447144. The cubic root of 288859 is about 66.1041361869.

The spelling of 288859 in words is "two hundred eighty-eight thousand, eight hundred fifty-nine".