9726321925 has 6 divisors (see below), whose sum is σ = 12060639218. Its totient is φ = 7781057520.

The previous prime is 9726321907. The next prime is 9726321931. The reversal of 9726321925 is 5291236279.

9726321925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1007618049 + 8718703876 = 31743^2 + 93374^2 .

It is a de Polignac number, because none of the positive numbers 2^k-9726321925 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194526414 + ... + 194526463.

Almost surely, 2^9726321925 is an apocalyptic number.

It is an amenable number.

9726321925 is a deficient number, since it is larger than the sum of its proper divisors (2334317293).

9726321925 is a wasteful number, since it uses less digits than its factorization.

9726321925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389052887 (or 389052882 counting only the distinct ones).

The product of its digits is 408240, while the sum is 46.

The square root of 9726321925 is about 98622.1168146375. The cubic root of 9726321925 is about 2134.5985658089.

The spelling of 9726321925 in words is "nine billion, seven hundred twenty-six million, three hundred twenty-one thousand, nine hundred twenty-five".