287115896 has 8 divisors (see below), whose sum is σ = 538342320. Its totient is φ = 143557944.

The previous prime is 287115883. The next prime is 287115901. The reversal of 287115896 is 698511782.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 287115896.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17944736 + ... + 17944751.

It is an arithmetic number, because the mean of its divisors is an integer number (67292790).

Almost surely, 2^287115896 is an apocalyptic number.

It is an amenable number.

287115896 is a deficient number, since it is larger than the sum of its proper divisors (251226424).

287115896 is a wasteful number, since it uses less digits than its factorization.

287115896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35889493 (or 35889489 counting only the distinct ones).

The product of its digits is 241920, while the sum is 47.

The square root of 287115896 is about 16944.4945631317. The cubic root of 287115896 is about 659.7090054810.

The spelling of 287115896 in words is "two hundred eighty-seven million, one hundred fifteen thousand, eight hundred ninety-six".