287087 has 2 divisors, whose sum is σ = 287088. Its totient is φ = 287086.

The previous prime is 287059. The next prime is 287093. The reversal of 287087 is 780782.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 287087 - 2⁸ = 286831 is a prime.

It is a Chen 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 287087.

It is not a weakly prime, because it can be changed into another prime (287047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143543 + 143544.

It is an arithmetic number, because the mean of its divisors is an integer number (143544).

2²⁸⁷⁰⁸⁷ is an apocalyptic number.

287087 is a deficient number, since it is larger than the sum of its proper divisors (1).

287087 is an equidigital number, since it uses as much as digits as its factorization.

287087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 287087 is about 535.8050018430. The cubic root of 287087 is about 65.9686873198.

The spelling of 287087 in words is "two hundred eighty-seven thousand, eighty-seven".