1087885812 has 48 divisors (see below), whose sum is σ = 2877546560. Its totient is φ = 317115648.

The previous prime is 1087885781. The next prime is 1087885823. The reversal of 1087885812 is 2185887801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180553 + ... + 186480.

Almost surely, 2^1087885812 is an apocalyptic number.

1087885812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1087885812 is an abundant number, since it is smaller than the sum of its proper divisors (1789660748).

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

1087885812 is a wasteful number, since it uses less digits than its factorization.

1087885812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367072 (or 367070 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 48.

The square root of 1087885812 is about 32983.1140434011. The cubic root of 1087885812 is about 1028.4766534478.

The spelling of 1087885812 in words is "one billion, eighty-seven million, eight hundred eighty-five thousand, eight hundred twelve".