9809317764 has 81 divisors (see below), whose sum is σ = 26367303781. Its totient is φ = 3074263680.

The previous prime is 9809317759. The next prime is 9809317801. The reversal of 9809317764 is 4677139089.

It is a happy number.

The square root of 9809317764 is 99042.

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., 7637012100 + 2172305664 = 87390^2 + 46608^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9809317764.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10101799 + ... + 10102769.

Almost surely, 2^9809317764 is an apocalyptic number.

9809317764 is the 99042-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9809317764

9809317764 is an abundant number, since it is smaller than the sum of its proper divisors (16557986017).

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

9809317764 is a wasteful number, since it uses less digits than its factorization.

9809317764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The cubic root of 9809317764 is about 2140.6529701594.

The spelling of 9809317764 in words is "nine billion, eight hundred nine million, three hundred seventeen thousand, seven hundred sixty-four".