9882561 has 32 divisors (see below), whose sum is σ = 14902272. Its totient is φ = 5785920.

The previous prime is 9882511. The next prime is 9882563. The reversal of 9882561 is 1652889.

9882561 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9882561 - 2¹⁵ = 9849793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (9882563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119026 + ... + 119108.

It is an arithmetic number, because the mean of its divisors is an integer number (465696).

Almost surely, 2^9882561 is an apocalyptic number.

It is an amenable number.

9882561 is a deficient number, since it is larger than the sum of its proper divisors (5019711).

9882561 is a wasteful number, since it uses less digits than its factorization.

9882561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213.

The product of its digits is 34560, while the sum is 39.

The square root of 9882561 is about 3143.6540840239. The cubic root of 9882561 is about 214.5967635754.

The spelling of 9882561 in words is "nine million, eight hundred eighty-two thousand, five hundred sixty-one".