287011863 has 8 divisors (see below), whose sum is σ = 425202800. Its totient is φ = 191341224.

The previous prime is 287011843. The next prime is 287011877. The reversal of 287011863 is 368110782.

It is not a de Polignac number, because 287011863 - 2⁵ = 287011831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287011843) 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, 5315008 + ... + 5315061.

It is an arithmetic number, because the mean of its divisors is an integer number (53150350).

Almost surely, 2^287011863 is an apocalyptic number.

287011863 is a deficient number, since it is larger than the sum of its proper divisors (138190937).

287011863 is a wasteful number, since it uses less digits than its factorization.

287011863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10630078 (or 10630072 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 287011863 is about 16941.4244678539. The cubic root of 287011863 is about 659.6293166412.

The spelling of 287011863 in words is "two hundred eighty-seven million, eleven thousand, eight hundred sixty-three".