288955 has 4 divisors (see below), whose sum is σ = 346752. Its totient is φ = 231160.

The previous prime is 288947. The next prime is 288973. The reversal of 288955 is 559882.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 559882 = 2 ⋅279941.

It is not a de Polignac number, because 288955 - 2³ = 288947 is a prime.

It is a d-powerful number, because it can be written as 2¹⁴ + 8⁴ + 9² + 8⁶ + 5⁵ + 5⁵ .

It is a Duffinian number.

288955 is a lucky number.

It is a plaindrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28891 + ... + 28900.

It is an arithmetic number, because the mean of its divisors is an integer number (86688).

288955 is a Friedman number, since it can be written as (85^2*8-9)*5, using all its digits and the basic arithmetic operations.

2²⁸⁸⁹⁵⁵ is an apocalyptic number.

288955 is a deficient number, since it is larger than the sum of its proper divisors (57797).

288955 is an equidigital number, since it uses as much as digits as its factorization.

288955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57796.

The product of its digits is 28800, while the sum is 37.

The square root of 288955 is about 537.5453469243. The cubic root of 288955 is about 66.1114584378. Note that the first 3 decimals are identical.

It can be divided in two parts, 28895 and 5, that added together give a square (28900 = 170²).

The spelling of 288955 in words is "two hundred eighty-eight thousand, nine hundred fifty-five".