87012328 has 16 divisors (see below), whose sum is σ = 175698180. Its totient is φ = 40159488.

The previous prime is 87012301. The next prime is 87012329. The reversal of 87012328 is 82321078.

It can be written as a sum of positive squares in 2 ways, for example, as 69856164 + 17156164 = 8358^2 + 4142^2 .

It is a super-2 number, since 2×87012328² = 15142290447959168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87012328.

It is not an unprimeable number, because it can be changed into a prime (87012329) 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, 418225 + ... + 418432.

Almost surely, 2^87012328 is an apocalyptic number.

It is an amenable number.

87012328 is an abundant number, since it is smaller than the sum of its proper divisors (88685852).

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

87012328 is a wasteful number, since it uses less digits than its factorization.

87012328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836676 (or 836672 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 87012328 is about 9328.0398798461. The cubic root of 87012328 is about 443.1256906656.

The spelling of 87012328 in words is "eighty-seven million, twelve thousand, three hundred twenty-eight".