287048 has 16 divisors (see below), whose sum is σ = 549180. Its totient is φ = 140608.

The previous prime is 287047. The next prime is 287057. The reversal of 287048 is 840782.

It can be written as a sum of positive squares in 2 ways, for example, as 228484 + 58564 = 478^2 + 242^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 287048.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 287048.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86 + ... + 762.

2²⁸⁷⁰⁴⁸ is an apocalyptic number.

It is an amenable number.

287048 is a deficient number, since it is larger than the sum of its proper divisors (262132).

287048 is a wasteful number, since it uses less digits than its factorization.

287048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 287048 is about 535.7686067698. The cubic root of 287048 is about 65.9656999613.

The spelling of 287048 in words is "two hundred eighty-seven thousand, forty-eight".