86028891 has 16 divisors (see below), whose sum is σ = 130796064. Its totient is φ = 49826304.

The previous prime is 86028889. The next prime is 86028931. The reversal of 86028891 is 19882068.

It is not a de Polignac number, because 86028891 - 2¹ = 86028889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86028841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64216 + ... + 65541.

It is an arithmetic number, because the mean of its divisors is an integer number (8174754).

Almost surely, 2^86028891 is an apocalyptic number.

86028891 is a deficient number, since it is larger than the sum of its proper divisors (44767173).

86028891 is a wasteful number, since it uses less digits than its factorization.

86028891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129790.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 86028891 is about 9275.1760630190. The cubic root of 86028891 is about 441.4499190115.

The spelling of 86028891 in words is "eighty-six million, twenty-eight thousand, eight hundred ninety-one".