9801205 has 8 divisors (see below), whose sum is σ = 12035232. Its totient is φ = 7658448.

The previous prime is 9801203. The next prime is 9801223. The reversal of 9801205 is 5021089.

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 9801205 - 2¹ = 9801203 is a prime.

It is a Duffinian number.

9801205 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9801205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9801203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22579 + ... + 23008.

It is an arithmetic number, because the mean of its divisors is an integer number (1504404).

Almost surely, 2^9801205 is an apocalyptic number.

It is an amenable number.

9801205 is a deficient number, since it is larger than the sum of its proper divisors (2234027).

9801205 is a wasteful number, since it uses less digits than its factorization.

9801205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45635.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 9801205 is about 3130.6876241490. The cubic root of 9801205 is about 214.0062667394.

The spelling of 9801205 in words is "nine million, eight hundred one thousand, two hundred five".