288663 has 4 divisors (see below), whose sum is σ = 384888. Its totient is φ = 192440.

The previous prime is 288661. The next prime is 288679. The reversal of 288663 is 366882.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 288663 - 2¹ = 288661 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 8 + 6 + 8³ + 6⁷ + 3² .

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48108 + ... + 48113.

It is an arithmetic number, because the mean of its divisors is an integer number (96222).

2²⁸⁸⁶⁶³ is an apocalyptic number.

288663 is a deficient number, since it is larger than the sum of its proper divisors (96225).

288663 is an equidigital number, since it uses as much as digits as its factorization.

288663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96224.

The product of its digits is 13824, while the sum is 33.

The square root of 288663 is about 537.2736732802. The cubic root of 288663 is about 66.0891815525.

The spelling of 288663 in words is "two hundred eighty-eight thousand, six hundred sixty-three".