9539428900 has 27 divisors (see below), whose sum is σ = 20702680369. Its totient is φ = 3815380880.

The previous prime is 9539428897. The next prime is 9539428901. The reversal of 9539428900 is 98249359.

The square root of 9539428900 is 97670.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3434194404 + 6105234496 = 58602^2 + 78136^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9539428901) 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 8 ways as a sum of consecutive naturals, for example, 971817 + ... + 981583.

Almost surely, 2^9539428900 is an apocalyptic number.

9539428900 is the 97670-th square number.

It is an amenable number.

9539428900 is an abundant number, since it is smaller than the sum of its proper divisors (11163251469).

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

9539428900 is an frugal number, since it uses more digits than its factorization.

9539428900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19548 (or 9774 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 49.

The cubic root of 9539428900 is about 2120.8378155857.

Multiplying 9539428900 by its sum of digits (49), we get a square (467432016100 = 683690²).

The spelling of 9539428900 in words is "nine billion, five hundred thirty-nine million, four hundred twenty-eight thousand, nine hundred".