9661443 has 24 divisors (see below), whose sum is σ = 14849856. Its totient is φ = 5540400.

The previous prime is 9661441. The next prime is 9661459. The reversal of 9661443 is 3441669.

It is not a de Polignac number, because 9661443 - 2¹ = 9661441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (9661441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11508 + ... + 12318.

It is an arithmetic number, because the mean of its divisors is an integer number (618744).

Almost surely, 2^9661443 is an apocalyptic number.

9661443 is a deficient number, since it is larger than the sum of its proper divisors (5188413).

9661443 is a wasteful number, since it uses less digits than its factorization.

9661443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863 (or 844 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 9661443 is about 3108.2861837353. The cubic root of 9661443 is about 212.9841730399.

The spelling of 9661443 in words is "nine million, six hundred sixty-one thousand, four hundred forty-three".