1087788928 has 32 divisors (see below), whose sum is σ = 2294559360. Its totient is φ = 511899648.

The previous prime is 1087788913. The next prime is 1087788971. The reversal of 1087788928 is 8298877801.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

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, 247776 + ... + 252127.

It is an arithmetic number, because the mean of its divisors is an integer number (71704980).

Almost surely, 2^1087788928 is an apocalyptic number.

It is an amenable number.

1087788928 is an abundant number, since it is smaller than the sum of its proper divisors (1206770432).

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

1087788928 is an equidigital number, since it uses as much as digits as its factorization.

1087788928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499934 (or 499922 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 58.

The square root of 1087788928 is about 32981.6453197835. The cubic root of 1087788928 is about 1028.4461214780.

The spelling of 1087788928 in words is "one billion, eighty-seven million, seven hundred eighty-eight thousand, nine hundred twenty-eight".