87028288 has 14 divisors (see below), whose sum is σ = 172696886. Its totient is φ = 43514112.

The previous prime is 87028283. The next prime is 87028289. The reversal of 87028288 is 88282078.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 81866304 + 5161984 = 9048^2 + 2272^2 .

It is not an unprimeable number, because it can be changed into a prime (87028283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 679845 + ... + 679972.

Almost surely, 2^87028288 is an apocalyptic number.

It is an amenable number.

87028288 is a deficient number, since it is larger than the sum of its proper divisors (85668598).

87028288 is a wasteful number, since it uses less digits than its factorization.

87028288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359829 (or 1359819 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 43.

The square root of 87028288 is about 9328.8953258143. The cubic root of 87028288 is about 443.1527820514.

The spelling of 87028288 in words is "eighty-seven million, twenty-eight thousand, two hundred eighty-eight".