288862 has 16 divisors (see below), whose sum is σ = 506880. Its totient is φ = 120888.

The previous prime is 288853. The next prime is 288877. The reversal of 288862 is 268882.

It is a happy number.

288862 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

288862 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439 + ... + 877.

It is an arithmetic number, because the mean of its divisors is an integer number (31680).

2²⁸⁸⁸⁶² is an apocalyptic number.

288862 is the 439-th pentagonal number.

288862 is a deficient number, since it is larger than the sum of its proper divisors (218018).

288862 is a wasteful number, since it uses less digits than its factorization.

288862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495.

The product of its digits is 12288, while the sum is 34.

The square root of 288862 is about 537.4588356330. The cubic root of 288862 is about 66.1043650318.

The spelling of 288862 in words is "two hundred eighty-eight thousand, eight hundred sixty-two".