944009 has 4 divisors (see below), whose sum is σ = 1029840. Its totient is φ = 858180.

The previous prime is 944003. The next prime is 944017. The reversal of 944009 is 900449.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-944009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (944003) 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 3 ways as a sum of consecutive naturals, for example, 42899 + ... + 42920.

It is an arithmetic number, because the mean of its divisors is an integer number (257460).

2⁹⁴⁴⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

944009 is a deficient number, since it is larger than the sum of its proper divisors (85831).

944009 is a wasteful number, since it uses less digits than its factorization.

944009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85830.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 944009 is about 971.6012556600. The cubic root of 944009 is about 98.0976743796.

The spelling of 944009 in words is "nine hundred forty-four thousand, nine".