288856 has 8 divisors (see below), whose sum is σ = 541620. Its totient is φ = 144424.

The previous prime is 288853. The next prime is 288877. The reversal of 288856 is 658882.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent 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 as a sum of consecutive naturals, namely, 18046 + ... + 18061.

2²⁸⁸⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

288856 is a deficient number, since it is larger than the sum of its proper divisors (252764).

288856 is a wasteful number, since it uses less digits than its factorization.

288856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36113 (or 36109 counting only the distinct ones).

The product of its digits is 30720, while the sum is 37.

The square root of 288856 is about 537.4532537812. The cubic root of 288856 is about 66.1039073404.

The spelling of 288856 in words is "two hundred eighty-eight thousand, eight hundred fifty-six".