28286329 has 8 divisors (see below), whose sum is σ = 28919808. Its totient is φ = 27659520.

The previous prime is 28286299. The next prime is 28286341. The reversal of 28286329 is 92368282.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28286329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28286291 and 28286300.

It is not an unprimeable number, because it can be changed into a prime (28286359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7449 + ... + 10585.

It is an arithmetic number, because the mean of its divisors is an integer number (3614976).

Almost surely, 2^28286329 is an apocalyptic number.

It is an amenable number.

28286329 is a deficient number, since it is larger than the sum of its proper divisors (633479).

28286329 is a wasteful number, since it uses less digits than its factorization.

28286329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335.

The product of its digits is 82944, while the sum is 40.

The square root of 28286329 is about 5318.4893531904. The cubic root of 28286329 is about 304.6904644323.

The spelling of 28286329 in words is "twenty-eight million, two hundred eighty-six thousand, three hundred twenty-nine".