2387856 has 20 divisors (see below), whose sum is σ = 6168752. Its totient is φ = 795936.

The previous prime is 2387851. The next prime is 2387857. The reversal of 2387856 is 6587832.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2387851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24826 + ... + 24921.

2^2387856 is an apocalyptic number.

It is an amenable number.

2387856 is an abundant number, since it is smaller than the sum of its proper divisors (3780896).

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

2387856 is a wasteful number, since it uses less digits than its factorization.

2387856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49758 (or 49752 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 2387856 is about 1545.2689086369. The cubic root of 2387856 is about 133.6603860071.

The spelling of 2387856 in words is "two million, three hundred eighty-seven thousand, eight hundred fifty-six".