9704643220 has 12 divisors (see below), whose sum is σ = 20379750804. Its totient is φ = 3881857280.

The previous prime is 9704643191. The next prime is 9704643227. The reversal of 9704643220 is 223464079.

It can be written as a sum of positive squares in 2 ways, for example, as 2056441104 + 7648202116 = 45348^2 + 87454^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9704643220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9704643227) 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, 242616061 + ... + 242616100.

It is an arithmetic number, because the mean of its divisors is an integer number (1698312567).

Almost surely, 2^9704643220 is an apocalyptic number.

It is an amenable number.

9704643220 is an abundant number, since it is smaller than the sum of its proper divisors (10675107584).

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

9704643220 is a wasteful number, since it uses less digits than its factorization.

9704643220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485232170 (or 485232168 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 9704643220 is about 98512.1475758193. The cubic root of 9704643220 is about 2133.0114720045.

The spelling of 9704643220 in words is "nine billion, seven hundred four million, six hundred forty-three thousand, two hundred twenty".