1087543728 has 30 divisors (see below), whose sum is σ = 3043612364. Its totient is φ = 362514528.

The previous prime is 1087543687. The next prime is 1087543739. The reversal of 1087543728 is 8273457801.

1087543728 is a `hidden beast` number, since 1 + 0 + 87 + 543 + 7 + 28 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3776050 + ... + 3776337.

Almost surely, 2^1087543728 is an apocalyptic number.

1087543728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1087543728 is an abundant number, since it is smaller than the sum of its proper divisors (1956068636).

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

1087543728 is a wasteful number, since it uses less digits than its factorization.

1087543728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7552401 (or 7552392 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 1087543728 is about 32977.9278912427. The cubic root of 1087543728 is about 1028.3688411857.

The spelling of 1087543728 in words is "one billion, eighty-seven million, five hundred forty-three thousand, seven hundred twenty-eight".