287008 has 12 divisors (see below), whose sum is σ = 565110. Its totient is φ = 143488.

The previous prime is 287003. The next prime is 287047. The reversal of 287008 is 800782.

It can be written as a sum of positive squares in only one way, i.e., 242064 + 44944 = 492^2 + 212^2 .

It is a super-3 number, since 3×287008³ = 70925639733313536, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (287003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4453 + ... + 4516.

2²⁸⁷⁰⁰⁸ is an apocalyptic number.

It is an amenable number.

287008 is a deficient number, since it is larger than the sum of its proper divisors (278102).

287008 is an equidigital number, since it uses as much as digits as its factorization.

287008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8979 (or 8971 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 287008 is about 535.7312759211. The cubic root of 287008 is about 65.9626357229.

The spelling of 287008 in words is "two hundred eighty-seven thousand, eight".