28648205 has 8 divisors (see below), whose sum is σ = 34408800. Its totient is φ = 22897936.

The previous prime is 28648199. The next prime is 28648237. The reversal of 28648205 is 50284682.

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-28648205 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6326 + ... + 9864.

It is an arithmetic number, because the mean of its divisors is an integer number (4301100).

Almost surely, 2^28648205 is an apocalyptic number.

It is an amenable number.

28648205 is a deficient number, since it is larger than the sum of its proper divisors (5760595).

28648205 is a wasteful number, since it uses less digits than its factorization.

28648205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5163.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 28648205 is about 5352.4017973243. The cubic root of 28648205 is about 305.9842965442.

The spelling of 28648205 in words is "twenty-eight million, six hundred forty-eight thousand, two hundred five".