28986518 has 16 divisors (see below), whose sum is σ = 47828880. Its totient is φ = 13174480.

The previous prime is 28986497. The next prime is 28986527. The reversal of 28986518 is 81568982.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2783 + ... + 8106.

It is an arithmetic number, because the mean of its divisors is an integer number (2989305).

Almost surely, 2^28986518 is an apocalyptic number.

28986518 is a deficient number, since it is larger than the sum of its proper divisors (18842362).

28986518 is a wasteful number, since it uses less digits than its factorization.

28986518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10924 (or 10902 counting only the distinct ones).

The product of its digits is 276480, while the sum is 47.

The square root of 28986518 is about 5383.9128893399. The cubic root of 28986518 is about 307.1840648721.

The spelling of 28986518 in words is "twenty-eight million, nine hundred eighty-six thousand, five hundred eighteen".