288887 has 4 divisors (see below), whose sum is σ = 290136. Its totient is φ = 287640.

The previous prime is 288877. The next prime is 288907. The reversal of 288887 is 788882.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 288887 - 2⁶ = 288823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288817) 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, 164 + ... + 777.

It is an arithmetic number, because the mean of its divisors is an integer number (72534).

2²⁸⁸⁸⁸⁷ is an apocalyptic number.

288887 is a deficient number, since it is larger than the sum of its proper divisors (1249).

288887 is an equidigital number, since it uses as much as digits as its factorization.

288887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248.

The product of its digits is 57344, while the sum is 41.

The square root of 288887 is about 537.4820927250. The cubic root of 288887 is about 66.1062720110.

The spelling of 288887 in words is "two hundred eighty-eight thousand, eight hundred eighty-seven".