28116086 has 16 divisors (see below), whose sum is σ = 44721600. Its totient is φ = 13219848.

The previous prime is 28116083. The next prime is 28116089. The reversal of 28116086 is 68061182.

It is an interprime number because it is at equal distance from previous prime (28116083) and next prime (28116089).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28116083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2621 + ... + 7943.

It is an arithmetic number, because the mean of its divisors is an integer number (2795100).

Almost surely, 2^28116086 is an apocalyptic number.

28116086 is a deficient number, since it is larger than the sum of its proper divisors (16605514).

28116086 is a wasteful number, since it uses less digits than its factorization.

28116086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5483.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 28116086 is about 5302.4603723177. The cubic root of 28116086 is about 304.0779679402.

The spelling of 28116086 in words is "twenty-eight million, one hundred sixteen thousand, eighty-six".