288831 has 8 divisors (see below), whose sum is σ = 394240. Its totient is φ = 187992.

The previous prime is 288823. The next prime is 288833. The reversal of 288831 is 138882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 288831 - 2³ = 288823 is a prime.

It is a super-2 number, since 2×288831² = 166846693122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 991 + ... + 1248.

It is an arithmetic number, because the mean of its divisors is an integer number (49280).

2²⁸⁸⁸³¹ is an apocalyptic number.

288831 is a deficient number, since it is larger than the sum of its proper divisors (105409).

288831 is a wasteful number, since it uses less digits than its factorization.

288831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285.

The product of its digits is 3072, while the sum is 30.

The square root of 288831 is about 537.4299954413. The cubic root of 288831 is about 66.1020002248.

The spelling of 288831 in words is "two hundred eighty-eight thousand, eight hundred thirty-one".