9615220 has 12 divisors (see below), whose sum is σ = 20192004. Its totient is φ = 3846080.

The previous prime is 9615191. The next prime is 9615223. The reversal of 9615220 is 225169.

It can be written as a sum of positive squares in 2 ways, for example, as 2782224 + 6832996 = 1668^2 + 2614^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9615223) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 240361 + ... + 240400.

It is an arithmetic number, because the mean of its divisors is an integer number (1682667).

Almost surely, 2^9615220 is an apocalyptic number.

It is an amenable number.

9615220 is an abundant number, since it is smaller than the sum of its proper divisors (10576784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9615220 is a wasteful number, since it uses less digits than its factorization.

9615220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480770 (or 480768 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 9615220 is about 3100.8418211834. The cubic root of 9615220 is about 212.6439716394.

The spelling of 9615220 in words is "nine million, six hundred fifteen thousand, two hundred twenty".