9611620 has 24 divisors (see below), whose sum is σ = 20374200. Its totient is φ = 3808512.

The previous prime is 9611617. The next prime is 9611627. The reversal of 9611620 is 261169.

It can be written as a sum of positive squares in 4 ways, for example, as 272484 + 9339136 = 522^2 + 3056^2 .

It is not an unprimeable number, because it can be changed into a prime (9611627) 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, 25 + ... + 4384.

It is an arithmetic number, because the mean of its divisors is an integer number (848925).

Almost surely, 2^9611620 is an apocalyptic number.

It is an amenable number.

9611620 is an abundant number, since it is smaller than the sum of its proper divisors (10762580).

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

9611620 is a wasteful number, since it uses less digits than its factorization.

9611620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4527 (or 4525 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 9611620 is about 3100.2612793118. The cubic root of 9611620 is about 212.6174299046.

Adding to 9611620 its reverse (261169), we get a palindrome (9872789).

The spelling of 9611620 in words is "nine million, six hundred eleven thousand, six hundred twenty".