9944865 has 48 divisors (see below), whose sum is σ = 19933056. Its totient is φ = 4492800.

The previous prime is 9944849. The next prime is 9944917. The reversal of 9944865 is 5684499.

It is a happy number.

It is not a de Polignac number, because 9944865 - 2⁴ = 9944849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9944865.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41145 + ... + 41385.

It is an arithmetic number, because the mean of its divisors is an integer number (415272).

Almost surely, 2^9944865 is an apocalyptic number.

It is an amenable number.

9944865 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

9944865 is a wasteful number, since it uses less digits than its factorization.

9944865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 387 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 9944865 is about 3153.5480018544. The cubic root of 9944865 is about 215.0467898886.

The spelling of 9944865 in words is "nine million, nine hundred forty-four thousand, eight hundred sixty-five".