287860867 has 8 divisors (see below), whose sum is σ = 331575296. Its totient is φ = 244794312.

The previous prime is 287860829. The next prime is 287860871. The reversal of 287860867 is 768068782.

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

It is a de Polignac number, because none of the positive numbers 2^k-287860867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (287860897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161013 + ... + 162790.

It is an arithmetic number, because the mean of its divisors is an integer number (41446912).

Almost surely, 2^287860867 is an apocalyptic number.

287860867 is a deficient number, since it is larger than the sum of its proper divisors (43714429).

287860867 is a wasteful number, since it uses less digits than its factorization.

287860867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323937.

The product of its (nonzero) digits is 1806336, while the sum is 52.

The square root of 287860867 is about 16966.4630079460. The cubic root of 287860867 is about 660.2790884262.

The spelling of 287860867 in words is "two hundred eighty-seven million, eight hundred sixty thousand, eight hundred sixty-seven".