28358285 has 8 divisors (see below), whose sum is σ = 34821600. Its totient is φ = 22158864.

The previous prime is 28358263. The next prime is 28358293. The reversal of 28358285 is 58285382.

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 28358285 - 2¹² = 28354189 is a prime.

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, 65735 + ... + 66164.

It is an arithmetic number, because the mean of its divisors is an integer number (4352700).

Almost surely, 2^28358285 is an apocalyptic number.

It is an amenable number.

28358285 is a deficient number, since it is larger than the sum of its proper divisors (6463315).

28358285 is a wasteful number, since it uses less digits than its factorization.

28358285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131947.

The product of its digits is 153600, while the sum is 41.

The square root of 28358285 is about 5325.2497594010. The cubic root of 28358285 is about 304.9486073042.

The spelling of 28358285 in words is "twenty-eight million, three hundred fifty-eight thousand, two hundred eighty-five".