287049 has 8 divisors (see below), whose sum is σ = 437440. Its totient is φ = 164016.

The previous prime is 287047. The next prime is 287057. The reversal of 287049 is 940782.

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

It is not a de Polignac number, because 287049 - 2¹ = 287047 is a prime.

It is a Duffinian number.

It is a Curzon number.

287049 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (287047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6814 + ... + 6855.

It is an arithmetic number, because the mean of its divisors is an integer number (54680).

2²⁸⁷⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

287049 is a deficient number, since it is larger than the sum of its proper divisors (150391).

287049 is a wasteful number, since it uses less digits than its factorization.

287049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13679.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 287049 is about 535.7695400076. The cubic root of 287049 is about 65.9657765637.

The spelling of 287049 in words is "two hundred eighty-seven thousand, forty-nine".