9327889561 has 3 divisors (see below), whose sum is σ = 9327986143. Its totient is φ = 9327792980.

The previous prime is 9327889559. The next prime is 9327889589. The reversal of 9327889561 is 1659887239.

The square root of 9327889561 is 96581.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 84989961 + 9242899600 = 9219^2 + 96140^2 .

It is not a de Polignac number, because 9327889561 - 2¹ = 9327889559 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9327889496 and 9327889505.

It is not an unprimeable number, because it can be changed into a prime (9327889261) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 48291 + ... + 144871.

Almost surely, 2^9327889561 is an apocalyptic number.

9327889561 is the 96581-st square number.

9327889561 is the 48291-st centered octagonal number.

It is an amenable number.

9327889561 is a deficient number, since it is larger than the sum of its proper divisors (96582).

9327889561 is an frugal number, since it uses more digits than its factorization.

9327889561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193162 (or 96581 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 58.

The cubic root of 9327889561 is about 2105.0437764699.

The spelling of 9327889561 in words is "nine billion, three hundred twenty-seven million, eight hundred eighty-nine thousand, five hundred sixty-one".