9869620 has 12 divisors (see below), whose sum is σ = 20726244. Its totient is φ = 3947840.

The previous prime is 9869609. The next prime is 9869621. The reversal of 9869620 is 269689.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7193124 + 2676496 = 2682^2 + 1636^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9869621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246721 + ... + 246760.

It is an arithmetic number, because the mean of its divisors is an integer number (1727187).

Almost surely, 2^9869620 is an apocalyptic number.

It is an amenable number.

9869620 is an abundant number, since it is smaller than the sum of its proper divisors (10856624).

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

9869620 is a wasteful number, since it uses less digits than its factorization.

9869620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493490 (or 493488 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 9869620 is about 3141.5951362325. The cubic root of 9869620 is about 214.5030527183.

The spelling of 9869620 in words is "nine million, eight hundred sixty-nine thousand, six hundred twenty".