5444009 has 4 divisors (see below), whose sum is σ = 5461716. Its totient is φ = 5426304.

The previous prime is 5443993. The next prime is 5444059. The reversal of 5444009 is 9004445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9004445 = 5 ⋅1800889.

It can be written as a sum of positive squares in 2 ways, for example, as 426409 + 5017600 = 653^2 + 2240^2 .

It is a cyclic number.

It is not a de Polignac number, because 5444009 - 2⁴ = 5443993 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5444059) 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, 8384 + ... + 9009.

It is an arithmetic number, because the mean of its divisors is an integer number (1365429).

Almost surely, 2^5444009 is an apocalyptic number.

It is an amenable number.

5444009 is a deficient number, since it is larger than the sum of its proper divisors (17707).

5444009 is a wasteful number, since it uses less digits than its factorization.

5444009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17706.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 5444009 is about 2333.2400219437. The cubic root of 5444009 is about 175.9163794400.

The spelling of 5444009 in words is "five million, four hundred forty-four thousand, nine".