287587116 has 72 divisors (see below), whose sum is σ = 779753520. Its totient is φ = 89092224.

The previous prime is 287587109. The next prime is 287587121. The reversal of 287587116 is 611785782.

It is a happy number.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32286 + ... + 40218.

It is an arithmetic number, because the mean of its divisors is an integer number (10829910).

Almost surely, 2^287587116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 287587116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389876760).

287587116 is an abundant number, since it is smaller than the sum of its proper divisors (492166404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

287587116 is a wasteful number, since it uses less digits than its factorization.

287587116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8015 (or 8010 counting only the distinct ones).

The product of its digits is 188160, while the sum is 45.

The square root of 287587116 is about 16958.3936739303. The cubic root of 287587116 is about 660.0697171533.

The spelling of 287587116 in words is "two hundred eighty-seven million, five hundred eighty-seven thousand, one hundred sixteen".