9641889 has 8 divisors (see below), whose sum is σ = 14284320. Its totient is φ = 6427908.

The previous prime is 9641887. The next prime is 9641893. The reversal of 9641889 is 9881469.

9641889 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 9641889 - 2¹ = 9641887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9641881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178527 + ... + 178580.

It is an arithmetic number, because the mean of its divisors is an integer number (1785540).

Almost surely, 2^9641889 is an apocalyptic number.

It is an amenable number.

9641889 is a deficient number, since it is larger than the sum of its proper divisors (4642431).

9641889 is a wasteful number, since it uses less digits than its factorization.

9641889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357116 (or 357110 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 9641889 is about 3105.1391273178. The cubic root of 9641889 is about 212.8403882604.

The spelling of 9641889 in words is "nine million, six hundred forty-one thousand, eight hundred eighty-nine".