288263 has 4 divisors (see below), whose sum is σ = 290928. Its totient is φ = 285600.

The previous prime is 288257. The next prime is 288283. The reversal of 288263 is 362882.

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 288263 - 2⁴ = 288247 is a prime.

It is a d-powerful number, because it can be written as 2² + 8² + 2¹³ + 8² + 6⁷ + 3 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1163 + ... + 1388.

It is an arithmetic number, because the mean of its divisors is an integer number (72732).

2²⁸⁸²⁶³ is an apocalyptic number.

288263 is a deficient number, since it is larger than the sum of its proper divisors (2665).

288263 is a wasteful number, since it uses less digits than its factorization.

288263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664.

The product of its digits is 4608, while the sum is 29.

The square root of 288263 is about 536.9012944667. The cubic root of 288263 is about 66.0586408728.

The spelling of 288263 in words is "two hundred eighty-eight thousand, two hundred sixty-three".