9527321641 has 2 divisors, whose sum is σ = 9527321642. Its totient is φ = 9527321640.

The previous prime is 9527321627. The next prime is 9527321701. The reversal of 9527321641 is 1461237259.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8267355625 + 1259966016 = 90925^2 + 35496^2 .

It is an emirp because it is prime and its reverse (1461237259) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9527321641 - 2⁷ = 9527321513 is a prime.

It is a super-3 number, since 3×9527321641³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9527321594 and 9527321603.

It is not a weakly prime, because it can be changed into another prime (9527321341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4763660820 + 4763660821.

It is an arithmetic number, because the mean of its divisors is an integer number (4763660821).

Almost surely, 2^9527321641 is an apocalyptic number.

It is an amenable number.

9527321641 is a deficient number, since it is larger than the sum of its proper divisors (1).

9527321641 is an equidigital number, since it uses as much as digits as its factorization.

9527321641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 9527321641 is about 97607.9998821818. Note that the first 3 decimals coincide. The cubic root of 9527321641 is about 2119.9401935929.

The spelling of 9527321641 in words is "nine billion, five hundred twenty-seven million, three hundred twenty-one thousand, six hundred forty-one".