288826 has 4 divisors (see below), whose sum is σ = 433242. Its totient is φ = 144412.

The previous prime is 288823. The next prime is 288833. The reversal of 288826 is 628882.

It is a happy number.

288826 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 628882 = 2 ⋅314441.

It can be written as a sum of positive squares in only one way, i.e., 286225 + 2601 = 535^2 + 51^2 .

It is a junction number, because it is equal to n+sod(n) for n = 288791 and 288800.

It is not an unprimeable number, because it can be changed into a prime (288823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72205 + ... + 72208.

2²⁸⁸⁸²⁶ is an apocalyptic number.

288826 is a deficient number, since it is larger than the sum of its proper divisors (144416).

288826 is a wasteful number, since it uses less digits than its factorization.

288826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144415.

The product of its digits is 12288, while the sum is 34.

The square root of 288826 is about 537.4253436525. The cubic root of 288826 is about 66.1016187885.

The spelling of 288826 in words is "two hundred eighty-eight thousand, eight hundred twenty-six".