9491944 has 64 divisors (see below), whose sum is σ = 23385600. Its totient is φ = 3499200.

The previous prime is 9491917. The next prime is 9491947. The reversal of 9491944 is 4491949.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 9491897 and 9491906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9491947) 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 15 ways as a sum of consecutive naturals, for example, 11299 + ... + 12109.

It is an arithmetic number, because the mean of its divisors is an integer number (365400).

Almost surely, 2^9491944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9491944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11692800).

9491944 is an abundant number, since it is smaller than the sum of its proper divisors (13893656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9491944 is a wasteful number, since it uses less digits than its factorization.

9491944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854 (or 850 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 9491944 is about 3080.8998685449. The cubic root of 9491944 is about 211.7312959759.

The spelling of 9491944 in words is "nine million, four hundred ninety-one thousand, nine hundred forty-four".