9944549 has 4 divisors (see below), whose sum is σ = 10132236. Its totient is φ = 9756864.

The previous prime is 9944531. The next prime is 9944563. The reversal of 9944549 is 9454499.

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 9042049 + 902500 = 3007^2 + 950^2 .

It is a cyclic number.

It is not a de Polignac number, because 9944549 - 2¹⁶ = 9879013 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 (9944569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93764 + ... + 93869.

It is an arithmetic number, because the mean of its divisors is an integer number (2533059).

Almost surely, 2^9944549 is an apocalyptic number.

It is an amenable number.

9944549 is a deficient number, since it is larger than the sum of its proper divisors (187687).

9944549 is a wasteful number, since it uses less digits than its factorization.

9944549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187686.

The product of its digits is 233280, while the sum is 44.

The square root of 9944549 is about 3153.4978991590. The cubic root of 9944549 is about 215.0445121468.

The spelling of 9944549 in words is "nine million, nine hundred forty-four thousand, five hundred forty-nine".