28086149 has 8 divisors (see below), whose sum is σ = 34567680. Its totient is φ = 22221936.

The previous prime is 28086137. The next prime is 28086203. The reversal of 28086149 is 94168082.

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

It is a cyclic number.

It is not a de Polignac number, because 28086149 - 2¹⁶ = 28020613 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28086049) 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, 154229 + ... + 154410.

It is an arithmetic number, because the mean of its divisors is an integer number (4320960).

Almost surely, 2^28086149 is an apocalyptic number.

It is an amenable number.

28086149 is a deficient number, since it is larger than the sum of its proper divisors (6481531).

28086149 is a wasteful number, since it uses less digits than its factorization.

28086149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308659.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 28086149 is about 5299.6366856606. The cubic root of 28086149 is about 303.9700058415.

It can be divided in two parts, 28086 and 149, that multiplied together give a palindrome (4184814).

The spelling of 28086149 in words is "twenty-eight million, eighty-six thousand, one hundred forty-nine".