87319328 has 24 divisors (see below), whose sum is σ = 172914588. Its totient is φ = 43404544.

The previous prime is 87319321. The next prime is 87319357. The reversal of 87319328 is 82391378.

It can be written as a sum of positive squares in 2 ways, for example, as 80496784 + 6822544 = 8972^2 + 2612^2 .

It is not an unprimeable number, because it can be changed into a prime (87319321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2351 + ... + 13422.

Almost surely, 2^87319328 is an apocalyptic number.

It is an amenable number.

87319328 is a deficient number, since it is larger than the sum of its proper divisors (85595260).

87319328 is a wasteful number, since it uses less digits than its factorization.

87319328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15956 (or 15948 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 87319328 is about 9344.4811519955. The cubic root of 87319328 is about 443.6462295738.

The spelling of 87319328 in words is "eighty-seven million, three hundred nineteen thousand, three hundred twenty-eight".