287860047 has 8 divisors (see below), whose sum is σ = 385934640. Its totient is φ = 190846080.

The previous prime is 287859991. The next prime is 287860049. The reversal of 287860047 is 740068782.

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

It is not a de Polignac number, because 287860047 - 2⁶ = 287859983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 287859990 and 287860008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287860049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264522 + ... + 265607.

It is an arithmetic number, because the mean of its divisors is an integer number (48241830).

Almost surely, 2^287860047 is an apocalyptic number.

287860047 is a deficient number, since it is larger than the sum of its proper divisors (98074593).

287860047 is a wasteful number, since it uses less digits than its factorization.

287860047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530313.

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 287860047 is about 16966.4388426093. The cubic root of 287860047 is about 660.2784614690.

The spelling of 287860047 in words is "two hundred eighty-seven million, eight hundred sixty thousand, forty-seven".