1087868856 has 16 divisors (see below), whose sum is σ = 2719672200. Its totient is φ = 362622944.

The previous prime is 1087868819. The next prime is 1087868861. The reversal of 1087868856 is 6588687801.

It is a junction number, because it is equal to n+sod(n) for n = 1087868796 and 1087868805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22663911 + ... + 22663958.

Almost surely, 2^1087868856 is an apocalyptic number.

It is an amenable number.

1087868856 is an abundant number, since it is smaller than the sum of its proper divisors (1631803344).

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

1087868856 is a wasteful number, since it uses less digits than its factorization.

1087868856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45327878 (or 45327874 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 57.

The square root of 1087868856 is about 32982.8570017820. The cubic root of 1087868856 is about 1028.4713100743.

The spelling of 1087868856 in words is "one billion, eighty-seven million, eight hundred sixty-eight thousand, eight hundred fifty-six".