1087511328 has 36 divisors (see below), whose sum is σ = 3092611158. Its totient is φ = 362503680.

The previous prime is 1087511309. The next prime is 1087511353. The reversal of 1087511328 is 8231157801.

1087511328 is a `hidden beast` number, since 108 + 7 + 511 + 32 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1064586384 + 22924944 = 32628^2 + 4788^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1087511292 and 1087511301.

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, 1887753 + ... + 1888328.

Almost surely, 2^1087511328 is an apocalyptic number.

1087511328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1087511328 is an abundant number, since it is smaller than the sum of its proper divisors (2005099830).

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

1087511328 is a wasteful number, since it uses less digits than its factorization.

1087511328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3776097 (or 3776086 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 1087511328 is about 32977.4366499278. The cubic root of 1087511328 is about 1028.3586287285.

The spelling of 1087511328 in words is "one billion, eighty-seven million, five hundred eleven thousand, three hundred twenty-eight".