288785 has 16 divisors (see below), whose sum is σ = 408576. Its totient is φ = 191808.

The previous prime is 288773. The next prime is 288803. The reversal of 288785 is 587882.

It is not a de Polignac number, because 288785 - 2⁸ = 288529 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 288785.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1184 + ... + 1406.

It is an arithmetic number, because the mean of its divisors is an integer number (25536).

2²⁸⁸⁷⁸⁵ is an apocalyptic number.

It is an amenable number.

288785 is a deficient number, since it is larger than the sum of its proper divisors (119791).

288785 is a wasteful number, since it uses less digits than its factorization.

288785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272.

The product of its digits is 35840, while the sum is 38.

The square root of 288785 is about 537.3871974657. The cubic root of 288785 is about 66.0984908445.

The spelling of 288785 in words is "two hundred eighty-eight thousand, seven hundred eighty-five".