28246685 has 8 divisors (see below), whose sum is σ = 34006200. Its totient is φ = 22523904.

The previous prime is 28246649. The next prime is 28246697. The reversal of 28246685 is 58664282.

It can be written as a sum of positive squares in 4 ways, for example, as 851929 + 27394756 = 923^2 + 5234^2 .

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-28246685 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, 7460 + ... + 10589.

It is an arithmetic number, because the mean of its divisors is an integer number (4250775).

Almost surely, 2^28246685 is an apocalyptic number.

It is an amenable number.

28246685 is a deficient number, since it is larger than the sum of its proper divisors (5759515).

28246685 is a wasteful number, since it uses less digits than its factorization.

28246685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18367.

The product of its digits is 184320, while the sum is 41.

The square root of 28246685 is about 5314.7610482504. The cubic root of 28246685 is about 304.5480541034.

The spelling of 28246685 in words is "twenty-eight million, two hundred forty-six thousand, six hundred eighty-five".