9882661 has 4 divisors (see below), whose sum is σ = 10464012. Its totient is φ = 9301312.

The previous prime is 9882659. The next prime is 9882673. The reversal of 9882661 is 1662889.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3682561 + 6200100 = 1919^2 + 2490^2 .

It is not a de Polignac number, because 9882661 - 2¹ = 9882659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9882601) 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 3 ways as a sum of consecutive naturals, for example, 290650 + ... + 290683.

It is an arithmetic number, because the mean of its divisors is an integer number (2616003).

Almost surely, 2^9882661 is an apocalyptic number.

It is an amenable number.

9882661 is a deficient number, since it is larger than the sum of its proper divisors (581351).

9882661 is a wasteful number, since it uses less digits than its factorization.

9882661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581350.

The product of its digits is 41472, while the sum is 40.

The square root of 9882661 is about 3143.6699890415. The cubic root of 9882661 is about 214.5974873960.

The spelling of 9882661 in words is "nine million, eight hundred eighty-two thousand, six hundred sixty-one".