28116849 has 8 divisors (see below), whose sum is σ = 37653760. Its totient is φ = 18662256.

The previous prime is 28116841. The next prime is 28116937. The reversal of 28116849 is 94861182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28116849 - 2³ = 28116841 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28116841) 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 in 7 ways as a sum of consecutive naturals, for example, 19777 + ... + 21150.

It is an arithmetic number, because the mean of its divisors is an integer number (4706720).

Almost surely, 2^28116849 is an apocalyptic number.

It is an amenable number.

28116849 is a deficient number, since it is larger than the sum of its proper divisors (9536911).

28116849 is a wasteful number, since it uses less digits than its factorization.

28116849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41159.

The product of its digits is 27648, while the sum is 39.

The square root of 28116849 is about 5302.5323195620. The cubic root of 28116849 is about 304.0807185529.

The spelling of 28116849 in words is "twenty-eight million, one hundred sixteen thousand, eight hundred forty-nine".