287004992 has 28 divisors (see below), whose sum is σ = 573366900. Its totient is φ = 142534656.

The previous prime is 287004959. The next prime is 287004997. The reversal of 287004992 is 299400782.

It can be written as a sum of positive squares in 2 ways, for example, as 14622976 + 272382016 = 3824^2 + 16504^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287004997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5513 + ... + 24584.

Almost surely, 2^287004992 is an apocalyptic number.

It is an amenable number.

287004992 is a deficient number, since it is larger than the sum of its proper divisors (286361908).

287004992 is a wasteful number, since it uses less digits than its factorization.

287004992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30258 (or 30248 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 287004992 is about 16941.2216796782. The cubic root of 287004992 is about 659.6240528063.

The spelling of 287004992 in words is "two hundred eighty-seven million, four thousand, nine hundred ninety-two".