86028890 has 16 divisors (see below), whose sum is σ = 155432520. Its totient is φ = 34282560.

The previous prime is 86028889. The next prime is 86028931. The reversal of 86028890 is 9882068.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25391521 + 60637369 = 5039^2 + 7787^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13301 + ... + 18680.

Almost surely, 2^86028890 is an apocalyptic number.

86028890 is a deficient number, since it is larger than the sum of its proper divisors (69403630).

86028890 is a wasteful number, since it uses less digits than its factorization.

86028890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32257.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 86028890 is about 9275.1760091116. The cubic root of 86028890 is about 441.4499173011.

The spelling of 86028890 in words is "eighty-six million, twenty-eight thousand, eight hundred ninety".