9812205 has 32 divisors (see below), whose sum is σ = 18789120. Its totient is φ = 4829760.

The previous prime is 9812197. The next prime is 9812207. The reversal of 9812205 is 5022189.

It is not a de Polignac number, because 9812205 - 2³ = 9812197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9812207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1041 + ... + 4550.

It is an arithmetic number, because the mean of its divisors is an integer number (587160).

Almost surely, 2^9812205 is an apocalyptic number.

It is an amenable number.

9812205 is a deficient number, since it is larger than the sum of its proper divisors (8976915).

9812205 is a wasteful number, since it uses less digits than its factorization.

9812205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5618 (or 5612 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 9812205 is about 3132.4439340553. The cubic root of 9812205 is about 214.0862973348.

The spelling of 9812205 in words is "nine million, eight hundred twelve thousand, two hundred five".