9928205 has 16 divisors (see below), whose sum is σ = 13668480. Its totient is φ = 6781632.

The previous prime is 9928169. The next prime is 9928207. The reversal of 9928205 is 5028299.

It is a cyclic number.

It is not a de Polignac number, because 9928205 - 2¹⁴ = 9911821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9928207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14327 + ... + 15003.

It is an arithmetic number, because the mean of its divisors is an integer number (854280).

Almost surely, 2^9928205 is an apocalyptic number.

It is an amenable number.

9928205 is a deficient number, since it is larger than the sum of its proper divisors (3740275).

9928205 is a wasteful number, since it uses less digits than its factorization.

9928205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 9928205 is about 3150.9054254293. The cubic root of 9928205 is about 214.9266380315.

The spelling of 9928205 in words is "nine million, nine hundred twenty-eight thousand, two hundred five".